OF THE MICROSCOPE. 



213 



Fig. 64. KHTXE'S TURN-TABLE. 

 (Upper side.) 



Fig. 65. KINNE'S TURN-TABLE. 

 (Underside.) 



the clutches can grasp 

 any piece of glass from 

 l to 3 inches in diag- 

 onal length, and the 

 table is made of brass 

 about a quarter of an 

 inch thick, -which gives 

 weight sufficient to se- 

 cure stability of move- 

 ment. The whole rests 

 on a small spindle 4 or 

 5 inches long, screwed 

 into the centre of the 

 brass stud, which is the 

 fulcrum of the lever, 

 and can be removed at 

 pleasure to pack away. 

 The pointed lower end 

 of the spindle is stepped 

 into a counter-sunk 



metal rest, and with a collar placed at a suitable distance above 

 to allow of free movement of the hand, I find that a steady 

 motion can be obtained with the thumb and finger, of any re- 

 quired velocity, and is under greater control than with any 

 milled-head device." 



Mr. Kinne suggests a very simple method of constructing a 

 home-made table on this plan: " The spindle can be fitted into 

 any appliance, primitive or expensive, at the option of the 

 worker, and I find that an old cigar box, with a portion of one 

 end removed, is just as useful as anything else, though if made 

 for sale', a cheap varnished box could be furnished, and in 

 which the table and spindle could be packed when desired. If 

 fitted up with the cast iron stand, the whole might present a 

 neater appearance, but the additional expense would not add to 

 its utility." 



Slides which have been imperfectly centered on other tables, 

 are recentered for varnishing by the use of two rectangular tri- 

 angles and a little wedge. The inventor uses the corners of a 

 broken slide and a piece of match. 



