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REPORT ON THE ICHTHYOLOGICAL DEPARTMENT. 



By F, W. Putnam. 



Since the last Report, the work of arranging the specimens, 

 already in jars, has steadily progressed, and I can now state that 

 the alcoholic portion of the collection is disposed of in the base- 

 ment of the building as follows : — 



Eighteen hundred and fifty-four trays have been placed in 

 the two hundred cases, built for the purpose, in the three base- 

 ment rooms. Each of these trays (with a few exceptions) con- 

 tains representatives of a single genus, the name of which, with 

 that of the family to which it is referred, is given on the tray. 

 These are placed, as nearly -as possible, in systematic order, so 

 that all the specimens of any genus are now readily accessible. 



In addition to the thousands of jars that have been arranged 

 in the trays, there are about fifteen hundred which have accu- 

 mulated during the year, principally by the separation of mixed 

 lots in large jars and the unpacking of several of the copper 

 cans. These jars will be placed in their proper trays when the 

 next step toward the final arrangement of the collection is taken. 

 There still remain between eighty and ninety copper cans and 

 two large tanks, the contents of which are at present unknown 

 to me. 



The following additions have been received since the last 

 Report : — 



From Mr. R. Brooks, a specimen of Prionotus from Rockport, Mass. 



From Count Kornis, two specimens of Cohitis from Hungary. 



From Mr. John T. Humphreys, a young Petromyzon from Georgia. 



From Miss C. M. Clapp, of the Mt. Holyoke Semioary, a Uving young 

 Petromyzon caught in the Connecticut River, in November, 1876. 



From Rev. M. M. Carletoii, two species, four specimens, from Umballa, 

 North India. 



From Mr. E. M. Nelson, a specimen of Sternotremia isolepis Nelson, 

 = Aphrodederus Saganus^ from the Calumet River, near Chicago, 111. 



