86 



THE MICROSCOPE. 



object, may be separated by pressing the two projecting 

 studs ; to the opposite end of the wire is adapted a small 

 brass cup, filled with cork, into which pins, passed through 

 discs of cork, card-board, or other material, having objects 

 mounted on them, may be stuck. 



Dipping -tubes for talcing up Animalcules are tubes of 

 glass, fig. 50, about nine inches in length, open at both 



d, 



Fig. 50. 



Fig. 51. 



ends, and from one-eighth to one-fourth of an inch in 

 diameter. The ends should be nicely rounded off in the 

 flame of a blow-pipe ; some of them may be straight, 

 whilst others should be drawn out to a fine point, and 

 made of either of the shapes represented. Mr. Yarley 

 thus describes the method of using them in volume 48 

 of the Transactions of the Society of Arts. " Supposing 

 the animalcules that are about to be examined to be 



