NEW AND IMPROVED DEVICES FOR FISH CULTURISTS. 



999 



with two hasps in front, and is Uned with a single sheet of asbestos, a layer 

 of >^-inch lumber, and over these a covering of rubberoid roofing. 



The empty case weighs 88 pounds. The space devoted to ice will hold 

 60 pounds. Allowing 20 pounds for eggs and moss, the whole shipping weight 

 would be 168 pounds. The case is designed to hold about 80,000 steelhead 

 trout eggs, 120,000 lake trout eggs, 250,000 brook trout eggs, or 1,000,000 

 whitefish eggs. 



This case has the advantage of allowing easy access to the eggs for inspec- 

 tion at any point en route. It permits of free circulation of air, thereby pro- 

 ducing an even moisture and even temperature for all of the trays. For local 

 shipments or field work the stacks of small trays, ice hoppers, and central ice 

 compartment may be removed and large trays substituted, making a combi- 

 nation case, and avoiding the necessity for three separate styles, as usually 

 required for different distances. The present case has also the advantage of 

 carrying a maximum number of eggs at a minimum weight. 



Coating the case inside with paraffin wax will prevent odors, or moisture 

 from swelling the box. 



The following tables record a 36-day test given a roughly constructed case 

 of this type, beginning January 29 and ending March 5, 1906. During the 

 first 26 days the case contained 53,000 eyed lake trout eggs. It was not filled, 

 only 10 of the 24 trays being used. Nine of them contained 5,000 eggs each 

 and one had 8,000. 



Record of First 26 Days of Test. 



Test day. 



3- 

 4- 



5- 

 6. 

 7- 

 8. 

 9- 



lO- 



1 1 _ 



12 _ 

 13- 

 14- 



Test day. 



15- 

 16. 

 17- 

 18. 

 19- 



23- 

 24- 

 25- 

 26. 



Total. 



The eggs were looked over on the seventh day and 44 dead eggs were removed; 

 on the sixteenth day 121 dead eggs were removed; on the twenty-sixth day 168. 



On the sixteenth day the moss placed over the eggs was removed, the water 

 squeezed out, and the moss then replaced. 



The above test was made in the boiler room, and on the ninth day the case was 

 moved nearer the boiler, which accounts for the rise in outside temperature. 



