1872.] 



SENATE— No. 249. 



25 



50. From Mr. Pike, TJ. S. Consul at Mauritius, a very rich lot of 

 Crustacea, dry, from Mauritius. 



51. From Mr. J. A. Allex, a very valuable lot of Astacus Gam- 

 -bati, and other Crustacea, from Colorado and Utah. 



52. From Mr. J. Shute, Woburn, Mass., fresh-water crabs, from 

 South Carolina, in alcohol. 



The additions to the Museum have been placed in secure boxes, 

 and carefully labelled. The newly received additions occupied a 

 large portion of the working year. The Texan Lepidoptera pur- 

 chased from Mr. Boll were carefully revised, a collection for the 

 Faunal department made, the duplicates introduced in the United 

 States collection, and in the general collection, and a full set of all 

 species sent to Prof Zeller, of Stettin, for a scientific monograph. 

 All new or doubtful species of the Rhopalocera were sent to Mr. 

 W. A. Edwards, of Coalburgh, West Virginia, now so success- 

 fully occupied with a Monograph of the United States Lepidop- 

 tera. The Hemiptera from Dallas, Texas, have been in the 

 same manner revised, and a full set sent to the well-known 

 American monographer, Mr. P. R. Uhler, of Baltimore. The 

 same work has been done with the greater part of the Texan 

 Coleoptera, and a set sent to Prof C. A. Dohrn, in Stettin. 



The scientific arrangement of the collection of Curculionidse 

 presented by Mrs. A. Hemenway is progressing. This work, 

 including a careful labelling of every species, takes time for its 

 completion, especially as a part of the collection is still in the 

 hands of European monographers. 



The biological collection is progressing. The additions partly 

 purchased, partly presented, and partly raised by myself, have 

 been unusually rich. The collection from Mr. Brischke of 

 Danzig, is arranged, and fills, alone, nearly the whole of one 

 cabinet. The plan adopted by Professor Agassiz could be car- 

 ried out in several boxes containing the whole history of an in- 

 sect. The history of Calosamia Prometheus alone, fills a box, 

 showing every stage of the insect from the egg, and the young 

 caterpillar, to its perfection as the imago, with a full series of 

 caterpillars in intermediate and full-grown stages, the chrysalis 

 and cocoon of both sexes, the cast skins and the structure of 

 the cocoon ; also, the enemies Of the caterpillars in the various 

 4 



