416 



SUMMARY OF CURRENT RESEARCHES RELATENG TO 



table, packed in such a way that each of them should be safely carried, 

 easily got at and replaced, every fitting being full-sized. 



In fig. 63 the Microscope is shown on the right, with the binocular 

 tube and condensing lens in place. Beneath is the ring for the 

 objectives, which replaces the tube when a compound Microscope is 

 not required. The turntable and hot stage are shown separately. 

 The three trays contain the various reagents, cements, &c. The 

 objectives are at the top of the case. 



In packing, the small tray seen inside the case is dropped into 

 the large bottom tray. The second large tray (in front) is placed on 



Fig. 63. 



the first, and the Microscope without the tube stands over both, the 

 legs fitting into places in the trays. The binocular tube lies 

 horizontally parallel to the back of the case. The front and top of 

 the case opens as shown in the fig. 



Mr. Fase calls attention to one or two points which he thinks 

 might escape notice on a first inspection : — 



The condenser is formed of two lenses, and besides acting as an 

 ordinary condenser, makes a capital long focus dissecting lens. The 

 mirror is removable, and can be utilized as a side reflector above the 

 stage. The achromatic condenser, fitted with stops, giving a good 

 black-ground efiect, works by a milled head above the stage, and con- 

 veniently near the other adjustments. The rest for the hands while 

 dissecting,, which the stand gives, is equally available when the 

 binocular is being used for general observation. It is comfortable, 

 and will be found to increase delicacy in the manipulation of objects. 



Though rigid, the stand can be made lighter than can that of the 

 ordinary form. The whole apparatus will not be more weighty than 

 an ordinary binocular instrument ; while it will, with all the helps to 

 dissection, mounting, and observation, pack in a space not larger than 



