1861.] MUSEUM OF COMPARATIVE ZOOLOGY". 49 



Work done in the Museum. 



There has been some interruption in the regular employment of 

 those connected with the Museum, arising partly from my absence in 

 Europe, and partly from the loss of time necessarily spent in the 

 removal of the collections to the new building, a work in which all the 

 students have united with the most hearty good-will. Nevertheless, 

 special investigations have been made as before, by all those who were 

 sufficiently advanced to carry them on. 



Mr. James M. Barnard has devoted some time to the study of the 

 Echinoderms, especially those brought home by the North Pacific 

 Exploring Expedition. Mr. Clark has made a special study of the 

 Medusae and their embryology. Mr. Cooke has studied the families of 

 Paguridse and Squillidae among the Crustacea, and has made a special 

 trip to Para, for the purpose of collecting the animals of that region. 

 Mr. Foley has been occupied in investigations relative to the domesti- 

 cated animals. Mr. Hyatt has made a study of the Unionidse, and in 

 connection with his investigations, has visited the Kentucky River, for 

 the purpose of identifying, if possible, the species described by Kafi- 

 nesque from that region, and also to study living specimens of a much 

 greater number of species than could be obtained in Cambridge. Mr. 

 Hyatt has also studied the fossil Brachiopods in relation to the living 

 types of that order. Mr. Lyman has been engaged in preparing a 

 monograph of the Ophiuridse, which is now nearly ready for publica- 

 tion. Mr. Morse has given his attention principally to the Bryozoa, 

 and to several other groups of Mollusks. Mr. Ordway has arranged 

 the Crustacea, and studied especially several families of that class. 



Mr. Putnam has been occupied in arranging the collection of Fishes, 

 and in the special study of the Etheostomoids and the Balistidse. Mr. 

 Scudder has spent the year in a special study of the family of Scise- 

 noids among the Fishes, and in the collection and study of Insects 

 injurious to vegetation, in connection with the third edition of Harris's 

 work, about to be published by the State, under the general superin- 

 tendence of the Secretary of the Board of Agriculture. Mr. Shaler, 

 during the greater part of the year, has been studying the general 

 relations of the Vertebrates as shown by the skeleton, and has com- 

 menced a special study of the family of Pleuronectidse in the class of 

 Fishes. Mr. Verrill has arranged the corals, and has made a special 

 4 



