244 B. H. GRAVE. 



2d night, several specimens spawned in quantity, 7-10 



P.M. 

 * First Quarter, July 22. 



X. 

 July 22-25 : 



100 specimens collected July 22. 



ist night, three spawned about one half usual amount of 



eggs. 

 2d night, about six specimens spawned in quantity, one 



half to two thirds maximum. 

 3d night, two specimens spawned lightly and a few eggs 



from others. 

 4th night, none spawned. 



XL 



July 28-30 : 



75 specimens collected July 28. 



ist night, one spawned; a few eggs from a second. 

 2d night, about ten specimens spawned in great abun- 

 dance, some about three thousand eggs. 



* Full moon, July 30. 



XII. 

 August 4-6 : 



75 specimens collected August 4. 

 ist night, very little spawning. 

 2d night, about eight spawned in abundance. 



XIII. 



* Last Quarter, August 7. 



August 7, experiment worthless. Chitons suffocated by stand- 

 ing without water. 



XIV. 



August lo-ii : 



120 specimens collected August 10. Good lot. 

 ist night, no eggs. 



2d night, three specimens spawned 8-10 P.M.; almost 

 none after 10 P.M. 



* New moon, August 13. 



