410 THE AMERICAN MONTHLY [Dec. 



The subject sliould be examined point bj' point, veri- 

 fyinp^ all statenients and considering all questions that 

 may be asked. The specimen should be kept moist all 

 the time and all the internal anatomy and some of the 

 external can be best made out under water, by using a pan 

 with the bottom covered with paraffine, into which i)ins 

 are to be thrust to hold the specimen in position. The 

 water must be changed as often as it becomes turbid. 

 Unfinislied dissections shouhl as a rule be kei)t in alcohol, 

 brine or I'ormo] and tinisheil subt^equently. Side reading 

 in anatomy is of great im])ortance especially for a mori)h- 

 ologist and a constant practice of comparison is abso- 

 lutely indispensible as a fixed haliit of mind. 



The types that have been selected as the basis for study 

 are easily obtained in the City of Saint Paul, if they are 

 not obtainable elsewhere related forms can be used; for 

 while the descrii)tions are for the most part based 

 directly on the animals indicated, other allied forms are 

 sufliciently similar for dissection in a first course. For 

 general reference the student should l.iave Wiedei-sheim's 

 Comparative Anatomy of Vertebrates; besides which are 

 the admirable articles in the Encyclopaedia Brittanica. 

 Parker's Zootomy is a most excellent guide where a fuller 

 course is desired. 



PART I. 



THE TELEOSTEAN FISH. 



Osnierus mordax, The Eastern Smelt. 



CONTENl'S. 



1. External Anatomy. 9. Tlie Alinienlarv Viscera. 



2. The Head. 10. The Heart and Blo.xl-VeHsels, 



3. The Nose. 11. The Uro Genital SyMeiu. 



4. The Eyes. V2. The Muscular System. 



5. The Ear. 13. The Nervous System. 



6. The .Mouth ami Throat. ]4. The Skeleton of the Trunk. 



7. Ihelliain. 15. The Si<ull. 



8. I'rineipal i'arts of the Trunk 16. The Skin, 

 and Post-Alidomen. 



