714 ZOOLOGICAL SOCIETY BULLETIN. 
wet # 34° 
ON THE COLLECTING BOAT. SETTING THE TRAPS AT THE EDGE OF THE REEF. 
Preparations for breakfast under way. Noting its position by means of a water-glass. 
Photos by L. L. Mowbray. 
for aerating the water, in order to prevent any The morays can endure a temperature a little 
considerable decrease in temperature. below 60°. The trigger-fish, (Ballistes) can 
Angel-fish and parrots will be very inactive 0 safely to as low a temperature as 44°. 
at a temperature of 65° and at 60° Fahrenheit Later in the season, that is, after the middle 
will die. of July, the water is carried gradually farther 
The Serranidae and most of the bottom fish north as far as to Scotland Lightship off Sandy 
will stand a temperature of 58°, although at Hook. but never north of this point except in 
this temperature they are not at all active. case of the air pump being disabled. 
Butterfly-fish, squirrel-fish and Spanish hog- The catch of a season will run from seventy- 
fish will stand only about 62° as a lower limit. five to one hundred species. 
THE LEAPING BLACK BASS. 
The two pictures of the small-mouthed black bass show a fish nineteen inches long, weighing three and one-quarter pounds, on the 
line. The fish was caught and photographed at Lake Cecebe, Ontario, by Mr. Fred H. Smythe, 
of the American Museum of Natural History. (CA & “Lt. 
