Double, triple or quadruple nose-piece according to 

 the number of objectives accompanying the microscope. 



Abbe camera lucida. 



Revolving or attachable mechanical stage. 



Eyepiece micrometer and stage micrometer. 



Mounted objects, Proboscis of Blow-fly and P. 

 angulqtum, dry. 



Pocket magnifier, preferably Aplanatic or Hastings 

 triplet. 



Cover glass gauge. 

 Flat-wick oil lamp. 

 Dissecting stand or dissecting microscope. 



Besides these there are other requirements such as 

 slides, covers, mounting media, forceps, etc., the neces- 

 sity of which, however, will be suggested by teachers 

 or can be determined from books devoted to this 

 purpose. There are other articles which in some 

 directions are necessities, but are general conveniences, 

 among which may be mentioned : 



Adjustable drawing table. 



Polariscope. 



Bull's Eye Condenser. 



Photomicrographic camera. 



Live box or compressor. 



Turn table. 



Revolving microscopical table. 



Cabinet for objects. 



