255 



alcohol. But if tlieir conspicuity is deemed desirable, they are pasted 

 or attached in some other way to a glass plate which is placed into a 

 square glass jar filled with alcohol. 



This method, however, leaves one half of the jar unused, as the 

 plate carrying the specimen passes through the middle of the vessel. 

 Therefore it will be advantageous to find out a method in which the 



Fig. 1. 



Fig. 2. 



Fig. 3. 



Fig. 4. 



specimen is suspended in the middle of the fluid and the jar is of the 

 same size as the specimen. 



This object is readily attained by selecting a vessel exactly pro- 

 portionate to the size of the specimen (Fig. I), and suspending the 

 object (Fig. le) from a double glass hook (Fig. 2). One end of the 



Fig. G. 



r 



a 



hook is attached to the anterior part of the object (Fig. 1, 2 5), the 

 other (Fig. 1, 2a) to a glass rod (Fig. Ic) arranged as follows: 



A glass rod extending from one of the small sides of the jar to 

 the other (Fig. 1 d) has in its middle a notch or loop (Fig. 3, 4 a) which 



