Paradise Cay Publications

Wholesale Distributor of Books & Gifts related to: | Aquariums | Zoos | Bigfoot | Dinosaurs | Pacific Northwest |  Nautical |  Outdoors

Apply for a Wholesale Account

Filter Search Results

Focused Region − +
Book Type − +
Animal − +
Activity − +
Audience − +
Discounted Products − +
Reset

All Outdoors Books

Astronomy & Stargazing
Beachcombing
Birding
Camping & Hiking
Field Identification Guides
Fishing
Foraging
Hunting & Tracking
Kayaking, Canoeing, Paddling
Outdoor Knots
Survival Guides
Astronomy Guides
Beachcombing & Seashore Field Guides
Bird Identification Guides
Fish & Sealife Identification Guides
Gardening
Insect Identification Guides
Mammal Identification Guides
Mushroom Identification Guides
Nature & Ecology
Other Field Guides
Plant & Flower Identification Guides
Reptile & Amphibian Identification Guides
Rocks, Fossils & Geology
Rocks, Minerals & Geology Field Guides
Tree Identification Guides
Safety & First Aid
1 2 3 4 5 6
4 - 18
Sort by Newest
50 Per Page
Field Guide to the North American Jackalope: Updated Edition
Field Guide to the North American Jackalope: Updated Edition
FAR032
$9.95  
Paperback, Andy Robbins, 48 pages, 7 x 5, 9781591523031
New Expanded Edition Features MORE... Species and fun facts of the elusive, otherworldly, and beautiful Jackalope. These words―and many more―can be used to describe one of North America’s most enigmatic creatures: the jackalope. The purpose of this field guide is to provide the reader with a...
Garden Bugs & Insects of the Northwest: Identify Pollinators, Pests, and Other Garden Visitors
Garden Bugs & Insects of the Northwest: Identify Pollinators, Pests, and Other Garden Visitors
AVK123
$9.95  
Spiral-Bound, Jaret C. Daniels, 36 pages, 4 x 7, 9781647552459
Get this tabbed booklet to garden insects and bugs, and learn how to identify and attract (or repel!) them. Brightly colored flowers, rich soil, and delicious nectar, the garden landscape is a bug’s paradise. It attracts the ones we want to see—like bees, butterflies, and lady...
The Minerals Encyclopedia: 700 Minerals, Gems and Rocks
The Minerals Encyclopedia: 700 Minerals, Gems and Rocks
FFB175
$29.95  
Paperback, Dr. Rupert Hochleitner PhD, 448 pages, 5.5 x 7.5, 9780228103622
Mineral collecting by amateur "rockhounds" has never been more popular. Old quarries, road cuts, and exposed landscapes are being examined by new generations of minerals enthusiasts. Each needs a comprehensive guidebook with clear photographs and accurate data. This is it. In a thick but...
Pacific Salmon Field Guide
Pacific Salmon Field Guide
LPP050
$24.95  
Paperback, Sean Godwin, Martin Krkosek, 160 pages, 5.5 x 8.5, 9781774511343
Pacific salmon are of immense cultural, ecological and economic importance to the west coast of North America. They are the most commonly seen fish on the western side of North America but identifying among the seven species is difficult for most of their life stages. Two salmon researchers have...
Hiking with Kids Northern California: 42 Great Hikes for Families
Hiking with Kids Northern California: 42 Great Hikes for Families
GPT267
$22.95  
Paperback, Heather Balogh Rochfort, 256 pages, 6 x 9, 9781493058327
DREAM IT Hiking with Kids Northern California: 42 Great Hikes for Families features concise descriptions and detailed maps for 40+ easy-to-follow hikes in Northern California that allow families to spend time together in nature. PLAN IT Hiking with Kids Northern California provides tips,...
Saltwater Game Fish of North America
Saltwater Game Fish of North America
WFP191
$7.95  
Folding Pocket Guide, 12 pages, 4 x 8, 9781620054192
North American coastlines are home to hundreds of species of resident and migrant saltwater fishes. Of these, a choice few are the target of anglers and skippers seeking the ultimate battle with some of nature's largest and most beautiful game fish. From the nearshore species like striped bass,...
The Laws Field Guide to the Sierra Nevada
The Laws Field Guide to the Sierra Nevada
IPS237
$26.00  
Paperback, John Muir Laws, 366 pages, 4 x 9, 9781597140522
In this groundbreaking and meticulously field-tested guide, the rich variety of Sierra life—trees, wildflowers, ferns, fungi, lichens, fish, reptiles, amphibians, birds, mammals, and insects—comes alive. Easy-to-use features include: Intuitive organization, color tabs, and simple...
Backyard Birds: 101 Flashcards for Discovering Birds
Backyard Birds: 101 Flashcards for Discovering Birds
NBN058
$12.95  
Flash Cards, Todd Telander, 102 pages, 4 x 7, 9781493025831
Identifying birds has never been more fun! Author and illustrator Todd Telander unlocks the mysteries found in your yard with Backyard Birds: 101 Flashcards for Discovering Birds. Featuring 101 of the most common birds of North America, each card comes complete with a detailed illustration,...
Spiders: A Folding Pocket Guide to Familiar Species Worldwide
Spiders: A Folding Pocket Guide to Familiar Species Worldwide
WFP193
$7.95  
Folding Pocket Guide, James Kavanagh, 12 pages, 4 x 9, 9781620054925
The lives of spiders are as varied as they are fascinating. There is also a remarkable diversity of species both worldwide (about 40,000) and within North America (about 3,500). Spiders are easy to find almost everywhere ― all we have to do is go out (or sometimes in) and look for them. When...
The Secret Stream
The Secret Stream
WWN856
$18.95  
Hardcover, Kimberly Ridley, 40 pages, 9 x 12, 9780884488170
In this nonfiction picture book, a stream narrates its own natural history as it flows from its headwaters in the mountains to its mouth in the lowlands, introducing the plants and animals that line its banks and live in its waters. The poetic story, combining lyricismwith natural history...
Fruits of the Forest: A Field Guide to Pacific Northwest Edible Mushrooms
Fruits of the Forest: A Field Guide to Pacific Northwest Edible Mushrooms
MOU134
$24.95  
Paperback, Daniel Winkler, 384 pages, 5.5 x 8.5, 9781680515305
Key characteristics for each species to aid in identification Full-color photographs depicting each featured species Includes recipes for simple backcountry fare to elaborate dishes With details for harvesting everything from the ever-popular golden chanterelles to...
Rockhounding Oregon: A Guide to the State's Best Rockhounding Sites
Rockhounding Oregon: A Guide to the State's Best Rockhounding Sites
GPT263
$24.95  
Paperback, Lars Johnson, 320 pages, 6 x 9, 9781493059669
Fully revised and updated, this book provides detailed directions and GPS coordinates to the best rockhounding sites in Oregon, with valuable tips on what tools to bring and how to conduct your search. Comprehensive lists of minerals or fossils for each site and excellent color photos will help...
The Secret World of Plants: Tales of More Than 100 Remarkable Flowers, Trees, and Seeds
The Secret World of Plants: Tales of More Than 100 Remarkable Flowers, Trees, and Seeds
DKP135
$24.99  
Hardcover, Ben Hoare, 192 pages, 8.5 x 10.5, 9780744059830
A timeless treasury of more than 100 stories from the incredible kingdom of plants, told by author and nature expert Ben Hoare. Plants are found almost everywhere on Earth, but to many people their lives are a mystery. Learn how seagrass flowers underwater, how the Venus flytrap counts to...
Hello, World! Rocks and Minerals
Hello, World! Rocks and Minerals
PGN398
$8.99  
Board, Jill McDonald, 26 pages, 7 x 7, 9780593428276
Learning about rocks and minerals is made easy for young readers with the bestselling nonfiction board book series Hello, World! A perfect gift for aspiring little geologists! Young children love exploring the beach to find shiny, colorful rocks. Now Hello, World! can teach them all about...
Owls: A Folding Pocket Guide to Familiar Species Worldwide
Owls: A Folding Pocket Guide to Familiar Species Worldwide
WFP192
$7.95  
Folding Pocket Guide, James Kavanagh, 12 pages, 4 x 9, 9781620054772
Owls first appeared in the fossil record about 56–65 million years ago and now live almost everywhere in the world where there is land, except Antarctica (one sighting of a single bird) and a few remote islands. Exceptional hunters, owls have superb eyesight and keen hearing, and are important...
Audubon Field Guide to Seashore Creatures
Audubon Field Guide to Seashore Creatures
RAN203
$27.00  
Paperback, Norman A. Meinkoth, 774 pages, 4 x 7.5, 9780394519937
Each of the 690 identification pictures is a full-color photograph of a seashore creature. Arrangement by shape and by color makes identification quick and easy. 666 species are covered in full detail.
The Ultimate Guide to Navigating without a Compass: How to Find Your Way Using the Sun, Stars, and Other Natural Methods
The Ultimate Guide to Navigating without a Compass: How to Find Your Way Using the Sun, Stars, and Other Natural Methods
SKY168
$17.99  
Paperback, Christopher Nyerges, 168 pages, 6 x 9, 9781510749900
Learn how to navigate without a compass, even when it seems impossible! Whether we are walking or driving, whether in the woods, on the water, or in the city, it’s vital that we know where we are and are able to find our way around. But with society’s current dependence on modern tools and...
Foraging for Survival: Edible Wild Plants of North America
Foraging for Survival: Edible Wild Plants of North America
SKY170
$17.99  
Paperback, Douglas Boudreau, Mykel Hawke, 208 pages, 6 x 9, 9781510738331
Whether you’re a hiker taking a walk through your local wilderness, or a chef looking for new ingredients to incorporate in your dishes,   Foraging for Survival   is the book for you. As consumerism and a meat-heavy, processed diet become the norm and the world’s population continues to...
Common Mammals of the Northwest
Common Mammals of the Northwest
CPC014
$14.95  
Paperback, J. Duane Sept, 96 pages, 5.5 x 8.5, 9780995226647
5 .5” x 8.5” • 96 pages • Full Color • Softcover • $14.95 • ISBN 978-0-9952266-4-7
A Californian's Guide to the Trees among Us: Expanded and Updated
A Californian's Guide to the Trees among Us: Expanded and Updated
IPS229
$22.00  
Paperback, Matt Ritter, 216 pages, 6 x 9, 9781597145602
Now expanded and updated: Californians’ favorite reference book to trees in our everyday lives “Anyone who is curious about trees is sure to find education and inspiration in these pages.”—David Allen Sibley, author of  The Sibley Guide to Trees  and  The Sibley Guide to Birds For more...
The Science and Spirit of Seaweed: Discovering Food, Medicine and Purpose in the Kelp Forests of the Pacific Northwest
The Science and Spirit of Seaweed: Discovering Food, Medicine and Purpose in the Kelp Forests of the Pacific Northwest
IPS216
$24.95  
Hardcover, Amanda Swinimer, 256 pages, 8 x 10, 9781550179613
Sustainable Pacific Northwest-based seaweed harvester Amanda Swinimer describes the ecology, culinary uses, evidence-based health benefits and climate change-resisting potential of seaweed and shares highlights from her remarkable life beneath the waves. Related to the most ancient living...
Park Rangers and What They Do (BOARD BOOK)
Park Rangers and What They Do (BOARD BOOK)
IPS223
$9.95  
Board, Liesbet Slegers, 32 pages, 6 x 6, 9781605377759
An enlightening informative book tailor-made for toddlers about the forester and everything she (or he) does. For nature lovers ages 4 and up. Today, we head out with the forester. Do any trees have to be cut down or planted? Are there any animals in the forest that weren’t there before?...
West Coast Wild at Low Tide
West Coast Wild at Low Tide
IPS231
$19.99  
Hardcover, Deborah Hodge, 36 pages, 9 x 11, 9781773064130
Explore the wild shoreline of the majestic Pacific west coast and discover the spectacular array of colorful creatures living in rhythm with the tides. At the edge of the Pacific Ocean, where land and sea meet, lies a narrow strip of beach called the intertidal zone. Endless tides move...
The Fact-Packed Activity Book: Rocks and Minerals: With More Than 50 Activities, Puzzles, and More!
The Fact-Packed Activity Book: Rocks and Minerals: With More Than 50 Activities, Puzzles, and More!
DKP130
$9.99  
Paperback, 96 pages, 8.5 x 11, 9780744056631
This fun-filled activity book will teach you all about rocks and minerals with exciting activities, puzzles and more! Uncover all there is to know about the rocks and minerals beneath your feet in this fun-filled activity book. Dig up the Earth’s hidden wonders, from ancient rocks to...
Mushroom Logbook
Mushroom Logbook
MOU132
$10.95  
Paperback, 128 pages, 6 x 7, 9781680516333
Includes space for spore printing Prompts and data points to fill in about found mushrooms Compact size makes it easy to take on hikes and foraging trips Expert and novice mushroom hunters alike will enjoy using this journal to track all their fungal finds. The  Mushroom...
Flat Stanley: Stanley in Space
Flat Stanley: Stanley in Space
HRW164
$2.99  
Paperback, Jeff Brown, 128 pages, 5 x 7, 9780064421744
A Far-out adventure! The President of the United States has chosen Stanley Lambchop and his family to become the first humans to fly in the  Star Scout,  a new top-secret spaceship. Stanley's most exciting adventure is about to begin. He'll meet the Queen of England, have a birthday...
BIGFOOT, SASQUATCH – BELIEVE CAMO, 16oz Vintage Campfire Mug
BIGFOOT, SASQUATCH – BELIEVE CAMO, 16oz Vintage Campfire Mug
CCC014
$14.95  
16oz Vintage Campfire Mug, Classic Enamel over Steel. This Outdoor Camping Coffee Cup is a Great Gift Mug for, Hiking and Camping Lovers. Or get a set for your home!  【IDEAL GIFT FOR THE BIGFOOT SASQUATCH LOVER】This Vintage enamel over steel camp style coffee mug is the perfect gift for...
BIGFOOT, SASQUATCH - LEAVE ONLY FOOTPRINTS, 16oz Vintage Campfire Mug
BIGFOOT, SASQUATCH - LEAVE ONLY FOOTPRINTS, 16oz Vintage Campfire Mug
CCC013
$14.95  
16oz big capacity beer mug is fantastic enamel drinkware, this cup sets for kitchen can be used indoor and outdoor, if you want to drink coffee, beer or milk, carry this camping coffee mugs sets.
Peterson Field Guide To Birds Of Western North America, Fifth Edition
Peterson Field Guide To Birds Of Western North America, Fifth Edition
HRW161
$19.99  
Paperback, Roger Tory Peterson, 480 pages, 5 x 8, 9781328762221
For decades, the  Peterson Field Guide to Birds of Western North America   has been a popular and trusted guide for birders of all levels, thanks to its famous system of identification and unparalleled illustrations. Following the Spring 2020 update to  Peterson Field Guide to Birds of...
Fixing Your Feet: Prevention and Treatments for Athletes, 7th Ed.
Fixing Your Feet: Prevention and Treatments for Athletes, 7th Ed.
AVK121
$24.95  
Paperback, John Vonhof, 400 pages, 6 x 9, 9781643590639
Get the book that covers what you need to know about foot care, including footwear, prevention, and treatment. Hiking, backpacking, running, walking, and other athletic endeavors, your feet take a beating with every step. Don’t wait until foot pain inhibits your speed, strength, and style....
Luschiim’s Plants: Traditional Indigenous Foods, Materials and Medicines
Luschiim’s Plants: Traditional Indigenous Foods, Materials and Medicines
HPC168
$29.95  
Paperback, Dr Luschiim Arvid Charlie, 288 pages, 6 x 9, 9781550179453
An invaluable compendium of Hul′q′umi′num′ traditional knowledge. Respected Cowichan Tribe Elder and botanical expert, Luschiim Arvid Charlie, began his education in early childhood, learning from his great grandparents and others of their generation.  Luschiim’s Plants  represents his...
Sibley’s Warblers of Eastern North America
Sibley’s Warblers of Eastern North America
FGG036
$9.95  
Laminated Pocket Guide, 4 x 9, 9781935380559
Written and illustrated by David Allen Sibley, America’s most widely respected bird illustrator and ornithologist. See http://www.sibleyguides.com for more information 38 species of Warblers both common and exotic found east of the Rockies Includes captions which capture the gestalt of...
Freshwater Fishes of the Southeast
Freshwater Fishes of the Southeast
FGG053
$9.95  
Laminated Pocket Guide, 4 x 9, 9781893770775
Range includes:North Carolina, South Carolina, Georgia, Alabama, and Mississippi 54 species commonly found in both warm and coldwater lakes, streams, and reservoirs Includes preferred bait and edibility index for each species, as well as detailed text prepared just for the region’s...
Favorite Fishes of Minnesota
Favorite Fishes of Minnesota
FGG058
$9.95  
Laminated Pocket Guide, 4 x 9, 9781935380900
58 species –both common and rare– found in the lakes, streams, rivers and reservoirs of Minnesota, the best freshwater fishing state of the union Includes preferred bait and edibility index for each species, as well as detailed text prepared specifically for Minnesota’s anglers Classic...
Whelks to Whales: Coastal Marine Life of the Pacific Northwest, Newly Revised and expanded Third edition
Whelks to Whales: Coastal Marine Life of the Pacific Northwest, Newly Revised and expanded Third edition
HPC167
$26.95  
Paperback, Rick M. Harbo, 352 pages, 6 x 9, 9781550179835
Newly revised and updated with additional photographs and up-to-date names, this full-colour field guide to the marine life of coastal British Columbia, Alaska, Washington, Oregon and northern California is perfect for divers, boaters and beachcombers. It is a ready reference to more than 400...
Birds of Oregon Field Guide: 2nd Edition
Birds of Oregon Field Guide: 2nd Edition
AVK117
$16.95  
Paperback, Stan Tekiela, 344 pages, 6 x 4.4, 9781647551513
Get the New Edition of Oregon’s Best-Selling Bird Guide Learn to identify birds in Oregon, and make bird-watching even more enjoyable. With Stan Tekiela’s famous field guide, bird identification is simple and informative. There’s no need to look through dozens of photos of birds that...
How to Forage for Mushrooms without Dying: An Absolute Beginner's Guide to Identifying 29 Wild, Edible Mushrooms
How to Forage for Mushrooms without Dying: An Absolute Beginner's Guide to Identifying 29 Wild, Edible Mushrooms
WPC161
$16.99  
Paperback, Frank Hyman, 256 pages, 5.5 x 7, 9781635863321
With the surging interest in foraging for mushrooms, those new to the art need a reliable guide to distinguishing the safe fungi from the toxic. But for beginner foragers who just want to answer the question “Can I eat it?”, most of the books on the subject are dry, dense, and written by...
Sagebrush Country: A Wildflower Sanctuary
Sagebrush Country: A Wildflower Sanctuary
MPP031
$14.00  
Paperback, Ronald J. Taylor, 221 pages, 5.5 x 8.5, 9780878422807
Sagebrush country is a land of contrasts--a place of desolation and a place of beauty. This field guide explores the elegance of the sagebrush steppe as expressed in the colorful spring and fall flowers and, more subtly, in the wondrous adaptations that enable plants to withstand the extremes so...
Birds of Washington Field Guide, 2nd Ed.
Birds of Washington Field Guide, 2nd Ed.
AVK118
$16.95  
Paperback, Stan Tekiela, 352 pages, 4.5 x 6, 9781647551544
Get the New Edition of Washington’s Best-Selling Bird Guide Learn to identify birds in Washington, and make bird-watching even more enjoyable. With Stan Tekiela’s famous field guide, bird identification is simple and informative. There’s no need to look through dozens of photos of birds...
Can You Dig It? (Card Game)
Can You Dig It? (Card Game)
HCB131
$12.00  
Cards, 4 x 6, 0810073341340
FUN FAMILY GAME: There's never a dill moment in this absolutely radishing game of Can You Dig It? from Ridley's Games! In this fast-paced card game, gardeners use trowel and error to harvest fruit and veg from the 4 community plots to develop the most impressive feast by the end of the game....
Learn about Nature Activity Book: 35 forest-school projects and adventures for children aged 7 years+
Learn about Nature Activity Book: 35 forest-school projects and adventures for children aged 7 years+
SIM434
$16.99  
Paperback, 128 pages, 8.25 x 10.75, 9781800650947
Discover the wonders of the natural world that surrounds you! Start with In The Garden—where you can build a bird feeder, or an insect hotel. Growing Fun has projects for plants that can be grown in small spaces, such as a miniature garden and a tiny terrarium. The Outdoors Indoors includes...
The Pocket Guide to Fishing Knots: A Step-by-Step Guide to the Most Important Knots for Fresh and Salt Water
The Pocket Guide to Fishing Knots: A Step-by-Step Guide to the Most Important Knots for Fresh and Salt Water
SKY165
$9.99  
Paperback, Joseph B. Healy, 200 pages, 4 x 6, 9781510721210
If you want to land the trout, salmon, bass, marlin, striper, pike, or shark of a lifetime, you have to know how to tie great knots! Every fisherman knows that fishing success comes down to effective connections—the angler must first ensure that the knot connections throughout the fishing...
The Nature of Oaks: The Rich Ecology of Our Most Essential Native Trees
The Nature of Oaks: The Rich Ecology of Our Most Essential Native Trees
WPC165SP
$27.95  
Hardcover, Douglas W. Tallamy, 200 pages, 6 x 9, 9781643260440
“With our hearts and minds focused on the stewardship of the only planet we have, the best way to engage in a hopeful future is to plant oaks! Let this book be your inspiration and guide.”  —The American Gardener With  Bringing Nature Home , Doug Tallamy changed the conversation about...
Next Time You See a Seashell
Next Time You See a Seashell
IPG095
$13.99  
Paperback, Emily Morgan, 32 pages, 9 x 11, 9781936959150
This book tells the amazing story behind seashells: how they are made by mollusks, used for protection and camouflage, and full of clues about all they've been through. Inspired by  Next Time You See a Seashell , young readers will find these intricate objects even more fascinating when they...
America's Seashores: Guide to Plants and Animals
America's Seashores: Guide to Plants and Animals
IPG098
$11.95  
Paperback, Marianne Wallace, 48 pages, 9 x 9, 9781555914837
Provides the perfect balance of science and fun with captivating illustrations and compelling facts about the myriad of life that inhabit these special places.
Happy Camper Stainless Steel Shotglass
Happy Camper Stainless Steel Shotglass
SHG016
$4.95  
Stainless Steel, 2 x 2.25"
1, 2, 3.. cheers! Grab the perfect shot glass for that special moment. Designed in-house, this stainless steel shot glass comfortably holds 2 fluid ounces. The durable overlay printing features a graphic on two sides of the shot glass. Pick your favorite design; they're sure to last round after...
Big Sur Wildlife: A Folding Pocket Guide to Familiar Regional Animals
Big Sur Wildlife: A Folding Pocket Guide to Familiar Regional Animals
WFP189
$7.95  
Folding Pocket Guide, 4.5 x 8.5, 9781583559802
One of the most varied and spectacular natural areas in California, Big Sur's pristine beaches and rich forests are teeming with unique wildlife including sea otters, elephant seals, California condors and hundreds of species of butterflies, birds, reptiles, amphibians and land mammals. This...
The Ultimate Guide to Sea Glass: Beach Comber's Edition: Finding, Collecting, Identifying, and Using the Ocean's Most Beautiful Stones
The Ultimate Guide to Sea Glass: Beach Comber's Edition: Finding, Collecting, Identifying, and Using the Ocean's Most Beautiful Stones
SKY116
$16.99  
Paperback, Mary Beth Beuke, 288 pages, 5.5 x 8.25, 9781634509374
Full-color expert advice for first-time seekers start new collections and veteran hunters who want to learn more—from California to Cape Cod, from the Gulf Coast to the Pacific Northwest, and around the world! As the owner of one of the world's most elaborate sea glass collections, Mary Beth...
The Kids' Guide to Birds of California: Fun Facts, Activities and 86 Cool Birds
The Kids' Guide to Birds of California: Fun Facts, Activities and 86 Cool Birds
AVK113
$13.95  
Paperback, Stan Tekiela, 240 pages, 5 x 7, 9781647551391
The Must-Have Beginner’s Guide to Bird-Watching Stan Tekiela’s famous   Birds of California Field Guide   has been delighting bird watchers for years. Now, the award-winning author has written the perfect bird identification guide for children!   The Kids’ Guide to Birds of California...
Backyard Science & Discovery Workbook: California: Fun Activities & Experiments That Get Kids Outdoors
Backyard Science & Discovery Workbook: California: Fun Activities & Experiments That Get Kids Outdoors
AVK112
$14.95  
Paperback, George Oxford Miller, 132 pages, 8.5 x 11, 9781647551681
Introduce children to nature in California through fun activities and hands-on science projects. With a wide range of habitats, plants, and animals, California is a wonderful region for getting outside and discovering nature. There is so much to see and appreciate―even in your backyard or...
1 2 3 4 5 6
4 - 18