66 Thiriii-First Annual Meeting^ 



and putting a screen (^ver the nest. If that were the case, should 

 not the sides of the hoxes he made high enough to stick up out 

 of the water ? 



Mr. Lydell : Certain!}- — -our hoxes that we have now with 

 I)rotected sides are sixteen inches high ; Init I will raise the new 

 boxes up above the two-foot level. 



Dr. Birge : You will get circulation of water enough if 3'ou 

 have a three-sided box coming up out of the water ? 



Mr. Lydell : Yes, sir, the three sides enclosed will have a 

 strip of copper wire screen four inches wide around, near the 

 surface of the water. With these l^oxes I am using now the 

 difficulty is this, you have to wade out into your pond to take 

 the boxes out of there, and you have to take them out. If you 

 screened the 1)0X itself, you could not collect one fiftieth of the 

 fry. Just as quick as you put your net in the water the fry will 

 go to the frame immediately. But when you raise the frame 

 out, it is filled with gravel, and the young fish are at the bot- 

 tom. The sides of your gTavel fall away and lots of your little 

 fish fall outside, and some are buried in the gravel, and you roil 

 up the whole pond. I have lost quite a few fish from that cause, 

 although most of them are far enough along when you screen 

 them so that they would not become injured. But with the 

 other screen, all you have to do is to paddle around with a boat 

 and drop the screen in at the side that is not ^jrotectcd. 



Mr. Stranahan: How do you take the fr}^ out of your box? 



Mr. Lydell : In the same way as out of a screen. It 

 answers the same ]mrpose as a screen — it is a screen and box 

 combined, and you can use the l)ox for large-moutli or small- 

 mouth bass as you see fit. 



Mr. Stranahan: You would not make your strip of netting 

 in the side more than four inches wide, and have it up near the 

 top of the water ? 



Mr. Lydell : Yes. 



Q. What mesh do you use ? 



A. Fine enough to hold young fry. We used the common 

 wire that they buy for door screens, for our small-mouth bass, 

 had it tarred two heavy coats, which lessens the size of the inter- 

 stices somewhat. We do not screen any large-mouth bass. 



Mr. Titcomb: When you take the fry out of the nest, you 



