264 Thirty-fourth Annual Meeting. 
Mr. Meehan: I have not had an opportunity to talk with 
Mr. Buller much about that. He reported to me that he found 
frogs eating the tadpoles. He can tell you to what extent they 
did it. 
Mr. Densmore: Do you use any particular species of frogs? 
Mr. N. R. Buller: At Erie we use the great western frog, 
the large frog; at Wayne the green frog; at Corry the western 
frog altogether. 
Mr. Dinsmore: What was the actual size of the frogs that 
you shipped ? 
Mr. Buller: About an inch and a half long. 
Mr. Lydell: At what time does the tadpole shed his tail ? 
I have collected large tadpoles to feed as food to the bass. They 
are just now commencing to form legs. We have seined them up 
there in ten or fifteen quart pails full, to feed the bass. I took it 
for granted that these frogs were from the spawn of the frog last 
year, because the big green bullfrogs are now spawning. 
Mr. Meehan: Apparently there are two periods of spawn- 
ing. We have frogs spawning early in the season and they are 
spawning again. We find them preparing to spawn in the 
Wayne ponds. 
The period of changing from tadpole to frog form will vary 
considerably according to the temperature of the water. It is a 
curious fact that several years ago, five or six, or perhaps more, 
Mr. Wiliam Buller raised a large number of tadpoles at Corry ; 
and he carried them through to this spring in tadpole form, and 
they were in spring water at a temperature of 50 degrees. They 
retained the tadpole form throughout the winter and did not 
change to the frog form until the spring, that is, until one year 
had elapsed. On the other hand we have hatched them out and 
in about thirty days we have the full tadpole of the same species. 
Mr. Lydell: Then I think ours the two-year variety. 
Mr. Meehan: These frogs you see here were this spring’s 
spawning. 
Dr. Gorham: In New England all our frogs have one spawn- 
ing season. 
