The Microscope. 



Published on the 10th of Each Month, 

 At 32, 34 and 36 Seitz Block, Detrou, Mich. 



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Vol. VII. 



DETROIT, DECEMBER, 1887. 



No. 12 



ORIGINAL COMMUNICATIONS, 



THE TAPE WORM. METHODS OF PREPARATION FOR 

 THE MUSEUM AND THE MICROSCOPE. * 



BY J. M. STEDMAN. 



T Toping that it may be of benefit to others, I venture to give 

 -*- -*■ some methods by means of which I was enabled to preserve 

 a tape-worm {Tcenia Saginata Goeyi'mediocanellata, Kucli) and at 

 the same time show its anatomy most beautifully. 



For museum purposes the excre- 

 tory (water- vascular) system (ex) of 

 the whole worm, or the latter part of 

 it, in which the uteri are fully de- 

 veloped, is injected with a fine in- 

 jecting mass, such as used for the 

 fine injection of cold-blooded verte- 

 brates. This can be readily accom- 

 plished by inserting the end of a 

 canula (c), which should be cut off 

 obliquely, into the generative cloaca, 

 or opening of the vagina (u), in 

 which operation the excretory canal 

 {ex), will be cut, and if the canula 

 be not inserted too far, the whole of 

 the excretoiy system caudal of the 

 canula will be injected without any 

 difficulty. 



* Transactions of the American Society of Microscopists, 1887. 



