136 



PRACTICAL TREATISE ON THE MICROSCOPE. 



the invention of the author's late brother, Mr. Edwin Quekett, 

 and represented by fig. 90, will be found extremely useful. 



They should be made either of brass 

 or German silver, and may be of any 

 length, from nine inches upwards. 

 The central part is a piece of wire 

 about one-eighth of an inch in 

 diameter; its upper end is fas- 

 tened to a flat piece of metal, bent 

 round into two loops, as repre- 

 sented by fig. 90, for the first and 

 second finger of the right hand to 

 be placed in. The lower part of 

 the wire is split, and having been 

 well hammered to make it springy, 

 is bent into the form of a pair of 

 forceps. On the outside of the 

 wire is a piece of tube about one- 

 fourth of an inch in diameter, and 

 shorter than the wire ; to its upper 

 part is soldered a piece of smaller 

 wire, bent into the form of a ring. 

 The use of this instrument must 

 be obvious from the figure; the 

 first and second finger of the right 

 hand being placed in the two 

 loops, the thumb is put into the 

 ring at the top, the wire by the 

 fingers is kept steady, and by the 

 motion of the thumb the tube is 

 raised or depressed ; when the 

 tube is raised, the blades of the 

 forceps being springy, open readily, 

 and when the thumb is depressed, 

 the blades are as easily closed. 



This pair of forceps will be found 

 very useful for taking hold of small 

 pieces of valisneria and chara, and 



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