48 REPORT OF COMMISSIONERS OF INLAND FISHERIES. 



(/) Sand. 



Class 1 70. 6 per cent, burrowed. 



" II 88 per cent. " 



" III 92 per cent. 



" IV 88.6 per cent. 



Average per cent. = 84.8 

 (g) Gravel. 



Class I 



" II /.. 



" III ■. 



" IV 84 . -5 per cent. 



Average per cent. = 78.7 



Summary: The average per cent, of all clams 83.4 burrowed. 



The average per cent, of those planted immediately after digging 91.2 



" " of those dry 24 hours after digging 84.9 



" " of those in water 24 hours after digging 76.3 



" " of those in soil dug up before sowing 91.6 



" " of those in soil not dug up before sowing 78.3 



The details of these experiments are tabulated in the succeeding 

 pages : 



