1866.] SENATE— No. 67. 29 



hundred numbers. A complete and valuable catalogue of the 

 Cephalopoda, now on exhibition, embracing 1,600 entries, has 

 been prepared by Mr. Hyatt. It is confidently hoped that the 

 coming year will complete the catalogues now under way, as 

 well as lay the foundations of similar work in other groups. 



The Brachiopoda collected by the Anticosti expedition in 

 1861, have been published in the fourth number of the Bul- 

 letin, which has recently been issued. Thirty-five species are 

 therein mentioned, including descriptions of twenty-four species 

 not hitherto noticed. An account of the other species of fossils 

 collected by that expedition will be given in future numbers of 

 the Bulletin, which will render a large amount of valuable 

 material available for exchange. 



During the year, twenty-four exchanges, varying in number 

 from fifteen to five hundred species, and comprising a total of 

 1,248 species, and 3,059 specimens, have been prepared for 

 transmission to various correspondents. In return, we have 

 received from nine individuals and institutions 848 species, 

 including 3,880 specimens. Many of these forms have peculiar 

 value, either from being typical specimens with original labels, or 

 as coming from localities of special importance. The past year 

 having been the first in which exchanges of fossils have been 

 made, the number of shipments necessarily bears a large pro- 

 portion to our returns. Nevertheless, the receipts from this 

 source are sufficiently numerous and valuable to show how 

 effective a means of increasing our collections it can be. 



The most valuable single addition to stores was the collection 

 of American Paleozoic fossils of the Kev. W. H. Barris, of 

 Burlington, Iowa, presented by Mrs. G. R. Russell, which 

 increased our collection of crinoids about 400 species, including 

 over 3,000 specimens, and gave us from many portions of our 

 American Paleozoic beds much valuable material for faunal 

 collections and for exchange. The total number of specimens 

 received by purchase amounted to 15,805, including 922 species. 

 From donations, our receipts have not been very numerous, but 

 of considerable value. A collection of over 100 species of 

 selected fossils from the Silurian basin of Cincinnati, including 

 about 1,000 specimens, was received from the assistant in charge 

 of the department. Messrs. A. Agassiz, St. John and Ward 



