ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 



107 



as embodying the latest ideas, and maximum of "convenience for metal- 

 lurgical work. 



Leach's Oxy-hydrogen Lantern Microscope.*; — This instrument 

 (fig. 6), which has been for some time before the public, and has been 

 described in earlier numbers of this Journal,t has received some improve- 

 ments from its manufacturers, Messrs. Woolley of Manchester, who equip 



Fig. G. 



it with the highest quality lenses and workmanship. It is fitted to any 

 oxy-hydrogen lantern by screwing it into the flange, which carries the 

 usual lantern objective. In working with this Microscope, all the 

 different parts are mechanically connected. There are no loose parts 

 to get out of position, or to keep in their place after the instrument is 

 set up. Fig. 6 shows the Microscope in its present form. 



i : ; 

 v - 



Fig. 7. 



Watson's New " Argus " Substage.f— This substage (fig. 7) can 

 be fitted to almost any Microscope. It is intended to replace the spiral 

 focussing screw so frequently applied to under-fittings of students' 

 Microscopes, and which Messrs. Watson have found so unsatisfactory 



* Woolley, Manchester, Special Circular, 

 t 1887, p. 1019; 1890, p. 803; 1892, p. 105. 

 % W. Watson & Sons' Special Catalogue, p. 7. 



