JIOUNTINQ mi "£ i u " OF THE Trxrunrhi \ in.i: 



a colored ring can be put round the top obji bj the turn-table 



in the ordinary way, but, excepl f"i ornament, i* nol n< 

 The author usually prepares two or thi ( the cards with 



one <-"v. r-glass on a< a time, bo as i>> bave tin m ready for use. The 

 object of letting the dissections harden in the cell, half filled with 



■in. is that inree or four separate parts may l»- arranged in the 

 most suitable \\ ay in the same cell withoul fear of their being disar- 



ed or injured when the top cover-glass is put on, while l»>th 

 uiighl happen if the whole operation \\ :is performed a1 on< i 



For the examination of the saws, a quarter-inch objective is the 

 besl ; the teeth, in Borne cases, are so fine that they are apl to be over- 

 looked if lower powers an used. (Trans. Entomol. Soc. Lond . 1881, 

 pp. 578 : 



