SEA-SIDE MICROSCOPES. 



107 



viewing objects in aquaria, and under other circumstances 

 where any ordinary form of instrument could not be made 

 available. It is altogether a useful student's microscope, 

 having the recommendation of folding up into a small com- 

 pass, and not liable to much injury either from chemical 

 or marine investigations. For 31. this microscope is furnished 



Fig. (51. ll~aringto)t's Microscope packed. 



complete, with one eye-piece, quite sufficient for all ordi- 

 nary investigations. 



Fig. 60 is a representation of Warington's microscope, 

 as it appears when put together, and ready for use ; and 

 fig. 61 fo* packing in a small wood case. The draw-tube 

 itself is the coarse adjustment; whilst a finer is secured by 

 a well-made union-joint, into which the object-glass is made 

 to screw. "With an additional arm for the reception of a 

 single lens, it can be converted into a dissecting microscope. 



Fig. 62. Murray and Heath' s Sea-side Pocket Micro* A*pe. 



