96 lliirty-nuith Aiiiiiial Mccthuj 



numl)ci-ini;- 4,000 ])cr (|uai-l. They were counted and meas- 

 ured in a 32-ounce i^raduale. 1>sls since made witli the 

 von Bayer scale sliowed the increase to Ijc considerably less. 



BROOK TROUT. 



In regard to brook trout eggs the records show an increase 

 of from 2' o to 10 per cent. Measurements made 1)\' Super- 

 intendent Robinson at the \Mnte Sulphur Springs station, 

 West \'irginia, ga\-e an a\erage increase of 2'o per cent. 

 Idiese figures are conservative, and it is probable that the 

 increase was somewdiat greater, for some of the tests indi- 

 cated an increase in bulk of 8 per cent up to the time of eye- 

 ing. Mr. Robinson is of the opinion that there is not much 

 increase after the eggs are fairly well eyed to the time of 

 hatching. The tests were made both by means of the dis- 

 placement of water in a graduated glass tu1)e, and b\- the 

 ^•on Bayer gauge. 



At South Chittenden, Vermont, brook trout eggs increased 

 in bulk from 365 to 340 to the ounce, approximatel}- 6 per 

 cent ; while at Spearlish, South Dakota, Superintendent 

 Booth recorded a 3 per cent increase, the latter tests being- 

 made l)oth l)y the von I'ayer gauge and by actual count of a 

 few ounces taken in a graduate. An increase of 2 per cent 

 or more was noted by Su])erintendent Dean, at Neo.sho, Alis- 

 souri, and a 4 per cent increase was recorded 1))' Superinten- 

 dent Henshall, of 13ozeman, ^Montana, the latter test l)eing 

 made with the von Ba}'er gauge. Observations l)-\- Su])erin- 

 tendent Hiompson at Leadville, Colorado, indicated in- 

 creases \arying from 3 to 10 per cent, and while Mr. Thom])- 

 son was at the Xashua, New Hampshire, station, he recorded 

 an increase of approximately 10 per cent. 



LANDLOCKED SALMON. 



As to landlocked salmon Superintendent Race of the 

 (ireen Lake, Alaine, station, iinds a sliglit increase during the 

 |)eriod of incubation, tests made with the von Bayer gauge 

 showing this to be approxiniately 1 per cent, Measurements 



