62 



Aquatic JLitt 



after, the temperature should be main- 

 tained at about 80 degrees ; at other times 

 75 degrees will be sufficient. 



This fish is decidedly carnivorous, 

 hence should be fed Daphnia, worms, 

 larvae of aquatic insects, meal worms, 

 shreds of raw beef and similar materials. 

 The young should, of course, be supplied 

 with Daphnia until large enough to take 

 the food of adults. 



Our knowledge of aquatic life has long 

 been accumulating. Those who have con- 

 tributed have been of very diverse train- 

 ing and equipment and have employed 

 very different methods. Fishermen and 

 whalers, collectors and naturalists, zoolo- 

 gists and botanists, with specialists in 

 many groups; water analysts and sani- 

 tarians, navigators and surveyors, plank- 

 tologists and bacteriologists, and biolo- 

 gists of many names and sorts and de- 

 grees, all have had a share. For the 

 water has held something of interest for 

 every one. 



Fishing is one of the most ancient of 

 human occupations, and doubtless the 

 beginning of this science was made by 

 simple fisher-folk. Not all fishing is, or 

 ever has been, the catching of fish. The 

 observant fisherman has ever wished to 

 know more of the ways of nature, and 

 science takes its origin in the fulfillment 

 of this desire. 



The largest and smallest of organisms 

 live in the water, and no one was ever 

 equipped, or will ever be equipped, to 

 study any considerable part of them. — 

 Life of Inland Waters. 



The life of daphne and fish buckets will 

 be lengthened materially if given several 

 coats of asphaltum varnish. After each 

 coat has hardened, bake overnight in a 

 very slow oven. 



Concluded from page 60. 

 sucker, like most other fishes of tem- 

 perate waters, is protectively colored. In 

 this case, as is many others, which we 

 learn about in our reading, the fish has 

 several color patterns with which to ren- 



Blotched Phase 



der itself inconspicuous — and thus often 

 to save itself from its enemies — in the 

 different and changing types of environ- 

 ment through which it passes in the 

 course of its hourly and daily wanderings. 



Plans are under way for the construc- 

 tion of an aquarium on Santa Catalina 

 Island. Novel features are promised. It 

 is proposed to insert great pieces of plate 

 glass in the rocks near Sugar Loaf, 

 through which the fishes will be viewed 

 in their haunts. Food will be supplied 

 regularly to attract the fishes to the de- 

 sired location. 



Doing business without advertising is 

 like winking at a girl in the dark. You 

 know what you are doing but nobody 

 else does. So why not come out into the 

 open, in Aquatic Life, where all the 

 world's aquarists may see? Then if you 

 have something good, aquarists will 

 "beat a path to your door even though 

 you live in the backwoods." Without 

 advertising you have about as much 

 chance of coming through as a man with 

 a wooden leg in a forest fire. 



There can be no better way to employ 

 one's leisure hours than by scientific 

 work, or even by scientific play. — Stokes. 



