Re ie Nee ees — os)” see 
ar BS gt Tae s am 
Efe 4 ie 5 vee ne . 
i es ae = a Sg aie Ta 
up when not pr . n this rod is the steel spring, G, 
bent as shown, carrying at its upper and longer extremity, at 
N, a cork-holder, through which is thrust the needle that 
bring the sides together. Having gummed a er well, la 
the needle on the crease, keeping its point within the paper, a0 
place the hair along side of it. Then closing the sides of the 
_V, the needle and the hair will be compressed together at the 
bottom of the crease ; and when the paper is perfectly dry the sig 
the projecting end of the cork at an angle inclining somewhat 7 
de re 
e diatom is to be transferred 
