CATALOGUE OF PUBLICATIONS. 535 



Diaguoses oC now si)ocies of niollusks i'nmi tlic. west tropic.il rcj^ion oC 



North Aiiiericii. 

 Diagnoses of new forms of niollusca from the west coast of North America, 



first collected by Col. E.Jewett. 

 Diagnoses of new forms of niollusca, collected by Col. E. Jewett, on the 



west tropical shores of North America. 

 Diagnoses des moIlus(iues nouveaux provcnant de Californie et faisant 



])artio du Musde do I'lustitntion Smithsonienue. 

 On the pleistocene fossils collected by Col, E. Jewelt, at Santa IJurbara, 



California; with descriptions of new species. 



253. Land and Fresb-water Shells of Nortb America. Part iv. Strepo- 



iiiatidie (American Melauians). By George W. Tkyon, Jr. 

 December, 1873. 8vo., pp. 490, 871 wood cuts. (M. C, xvi.) 



254. Synopsis of American Wasps. Solitary Wasps. By Henry Be 



Saussure. December, 1875. 8vo., pp. 430, 4 plates of 31 lig- 

 ures. (M. C, Xiv.) 



255. Tbe Constants of Nature. Parti. Specific Gravities, Boiling;' and 



Melting- Points; and Chemical Formulas. By Frank Wig- 

 gleswortii Clarke. December, 1873. 8vo., pp. 272. (M. C, 



XII.) 



256. Monographs of the Diptera of JSTorth America. Part iii. By IT. 



LoEW. December, 1873. Sro., pp. 381,4 plates of IIG lignies, 

 (M. C, XL) 



257. Systematic Index to List of Foreign Correspondents of the Smith- 



sonian Institution. 1872. 8vo., pp. 30. (M. C, X.) 



258. Bibliographical Index to North American Botany; or. Citations of 



Authorities for all the recorded Indigenous and Naturabzed 

 Species of the Flora of Nortli America; with a Chronological 

 Arrangement of the Synonymy. Parti. Polypetahe. By Se- 

 RENO Watson. IMarch, 1878. 8vo., pp. 484. (M. C, xv.) 



259. Explorations of the Aboriginal Remains of Tennessee. By Joseph 



Jones. October, 1876. 4to., pp. 181, 110 wood-cuts. (S. C, 



XXII.) 



260. Regulations of the Smithsonian Institution. January, 1872. 8vo., 



pp. 41, 1 wood-cut. 



261. Directions for Collecting and Preserving Insects. By A. S. 



Packard, Jr. 1873. 8vo., pp. GO, 55 vrood-cuts. (M. C, xi.) 

 269. An Investigation of the Orbit of Uranus, with General Tables 

 of its Motion. By Simon Newcomb. August, 1873. 4to., 

 pp. 290. (S. C, XIX.) 



263. Circular of Instructions to Observatories rehitive to Telegraphic 



Announcements of Astronomical Discoveries. By Joseph 

 Henry. May, 1873. 8vo., pp. 4. (M. C, xii.) 



264. New Species of North American Coleoptera. P.irt ii. By John 



L. Le Conte. 1873. 8vo., pp. 74. ([)p. 109-240.) (},I. C, XL) 



