ON GIANT EGG herring gull teeters uncertainly trying to keep from slipping off. Finally the gull gave up and settled down on the small egg alongside. GULL’S BIRDBRAINED ENDEAVOR The herring gull shown on page 70 reached a decision quickly. Ignor¬ ing the normal-sized wooden egg, the bird gamely struggled aboard the monster egg {above). This incident was illuminating to Gerard Baer- ends, professor of zoology at Holland’s Groningen State University, because it proved that an object needs to have only faint resemblance to a real egg for a herring gull to do its unintelligent best to hatch it, even in preference to an egg of proper size. Professor Baerends made the wooden egg experiment this year on Terschelling Island in the North Sea. His experiments have taught him other things about herring gulls. To fool them he made eggs of different shapes and colors {below), and placed some of them on the edge of a nest and waited to see which the gull would drag in. Herring gulls, he found, are usually bored by plain eggs. But if the egg is speck¬ led, the bird will try to hatch it, even when it is square {next page). EGG ARSENAL, spread before Baerends, includes glass egg {left, on paper) invisible to gull, but which it will try to hatch when it feels egg with its body. ■YsYYY. -; m Hi FL AT - SID E D EG G , painted with normal gull-egg color scheme, is first ignored as gull rolls egg-shaped artificial egg into nest with beak (top). But then she maneuvers the square egg down from the edge of the nest (center) and, with a wide yawn (bottom), settles down comfortably to hatch both of them. /V»i '*£ l * '4 r jr. wifftJ] nil » |/. miwW C f 9 J . |(^S^lSK|NpHP^ *" 1 ' •s Lw w 3T l*v , X J fiAflv it A r, fl '— * v ** ^-1 * -*’ t 1 •„ . _tt3P3BW^Bifc jPJ2^Bl' 4,,, X *'^SBLt k ^X, » < ^SjL • ie ■ \ ji Jfc "* ^ ’ —j^Fi* 1* -"'fl j A HK/ «■ .",, til' IN HER NEST ON A NORTH SEA ISLAND A HERRING GULL PONDERS OVER TWO PAINTED WOODEN EGGS, ONE NORMAL SIZE, THE OTHER ONE 20 TIMES AS LARGE geio diahea done double ■quick / The ALL-IN-ONE faucet dishwasher! The dishwasher all America can afford! THE DISH-QUIK SECRET ... one-hand fingertip control! Turn on the faucet and you’re ready to go. Now press the lever: water flowing from the spout is diverted instantly to Dish-Quik. Release: the flow of water returns to the faucet spout. DISHES AIR-DRY ... sparkling bright without wiping, because Dish-Quik spray-rinses as hot as you wish ... even cleans out the sink. It’s ideal, too, for use with a fully-automatic dishwasher, for pre-washing and for odd pieces that may not go into the washer. FOR INSTANT SUDS ... rich and foamy, just tap the red button. Every dish, every glass, gets fresh clean suds, automatically produced from the'tiny ^see-thru" cup filled with any good liquid detergent (such as Joy). The cup holds enough for two days or more! GETS DISHES CLEAN ... really clean ... even scours pots and pans! And does away with “sour” dishrags. The sturdy Dish-Quik brush, made of non¬ absorbent nylon bristles, is always “sweet” and always clean because it’s rinsed clean with every use! 4 - Dish-Quik comes this way As a standard attachme nt on a ll types of quality sink faucet units, often sold under the faucet manufacturer's own trade name. To be sure it’s a Dish-Quik, look for the clear detergent cup on the handle. You can replace any old faucet with a new model featuring Dish-Quik. When building , buying or remodeling, be sure your sink is modern ... get one equipped with a Dish-Quik! Dish-Quik gets dishes done double-quick because it’s your dishrag, dishpan, soap and rinse all-in-one and always ready to use! Billowy suds, all-nylon brush and hottest rinse... automatically controlled at the fingertips of one hand! No more stacks of dirty dishes! With Dish-Quik you wash them as you use them. And you’re through with rough and reddened hands... because Dish-Quik keeps your hands out of hot, soapy water. Get your dishes done double-quick! You can get your Dish-Quik wherever plumbing goods are sold. ,.. or this way Separately, as a replacement for any of the plain water sprays illustrated below. You can replace your old spray with Dish-Quik in minutes. Make your plain spray faucet exactly like the newest models! Ask for a Dish-Quik wherever plumbing goods are sold. . .only $9.95 If your dealer is not supplied, send his name and ad¬ dress and your own with $9.95, check or money order. We mail Dish-Quik to you. Californians add 3% tax. ~ Available on all types.of wall or deck mount faucet units. y# 0 [ ■& /, ' " r I ■ . . ' r . • | ' ■ •- ■ l - - ' ■ r:S -• • , 4 . ■ * . • .4* •: V . • ; ' ... • ■ j ‘ ■ v . . .. \ - •* * ' • --*<■ ■ *<: i • - • ■I * - -- < ' , ■ tr ■ * , ■ l .. w s i. . * - ' t * . , -v