REPORT OF TIIK SK('1>M-:TAKV. 81 



No. 796. " Animiils icciMitly oxtiuet, or thi-Biitened with extermiiiatioii, us repre- 

 sented ill the collections of the U. S. National Museum." By Frederick A. Lucas. 

 (From the Report of the National Museum for 1889.) Octavo pamphlet of 41 pages; 

 illustrated with 9 (ignres and 11 plates. 



No. 797. ''Tlu; development of the American Kail aiul Track, as illustrated liy the 

 collection in the V. 8. National Museum." liy ,]. Elfreth Watkins. (From the Re- 

 port of the National Museum for 1889.) Octavo pamphlet of 58 pages; illustrated 

 with 115 ligures. 



No. 798. "Explorations in Newfoundland and Labrador in 1887, made in connec- 

 tion with the cruise of the U. S. Fish Commission schooner Grampits." By Frede- 

 rick A. Lucas. (From the Report of the National Museum for 1889.) Octavo i)am- 

 phlet of 20 pages; illustrated with 1 plate or sketch map. 



No. 799. -'Prcdiminary Handbook of th<' Department of Geology of the U. S. Na- 

 tional Museum." Hy George P. Merrill. (From the Report of the National Museum ; 

 Appendix.) Octavo pamphlet of 50 pages. 



No. 803. "The .Squaring of the Circle." By Herman Sliubcrt. (Froju the 'Smith- 

 sonian Report for 1890.) ■ Octavo pamphlet of 21 pages. 



No. 804. "An Account of the Progress in Astronomy for the years 1889, 1890." By 

 William C. Winlock. (From the Smithsonian Report for 1890.) Octavo ])amphlet 

 of 02 pages. 



No. 805. "M.-ithcmaticalTluMU-iesof the Earth." By RcdjcrtS. Woodward. (From 

 the Smithsonian Report for 1890.) Octavo jtamphlet of 18 pages. 



No. 806. "On tin; Physical Structure of the P^arth." By Henry Heuncssy. (From 

 the Smithsouiau Report ibr 1890.) Octavo iiamjdilet of 19 pages. 



No. 807. "(ihicial (Jeology." l!y .I.iiues (icikic. (From tln^ Smitiisonian Report 

 for 1890.) ()<tavo i)ami)hletof 10 ])ages. 



No, 808. " The History of the Niagara River. ' i'.y (J. K. {4ilbert. (Fnmi the Smith- 

 sonian Report lor 1890.) Octavo pamphlet of 46 pages: illuslrated with 8 ])lates. 



No. 809. "The Mediterranean Physical and Historical." liy Sir R. L. Playfair. 

 (From the Smithsonian Report for 1890.) Octavo pamphlet of 18 pages. 



No. 810. " Stanley and tiie luap of Africa." By J. Scott Keltic. (From the Smitii- 

 sonian Repm't lor 1890.) Octavo pamphlet of 15 i)ages; illustrated with 2 niai)s. 



No. 811. "Antarctic p]xploratioiis." By G. S. (iriffiths. (From the Smithsonian 

 Rcp(n-t for 1890.) (){;tavo pamphlet of 12iKigcs. 



No.812. "The History of (ieodctic; Operations in K'lissia." By 15. Wilsko\vsi<i and 

 .). Howard Gore. (From tlie Smithsonian Report tor 1S9(). ) Octavo paui])lilel of 1(» 

 ]iages. 



No. 8K!. "Quartz Fibers." By ('. V. Boys. (From the Smiliisouiaii Report for 

 1890.) Octavo pamphlet of 20 pages; illustrated with 9 tigures. 



No. 814. "Dr. Kteuig's Researches on the Physical Basis of Musical Harmony and 

 Timbre." By Sylvanus P. Thompson. (From the Smithsonian U'ejiort for 1890.) 

 Octavo pamphlet of 25 pages; illustrated with 8 figures. 



No. 815. "The (Jhemical Problems of To-day." By Victor M(!yiM-. (From the 

 Smithsonian Report for 1890.) Octavo pamphlet of 15 pages. 



No.816. "Tiie Photograidiic Image;." By Rai)hael Meldola. (Frrun the Smith- 

 sonian Report for 1890.) Octavo pamphlet of 11 i)ages. 



No. 817. "A Tro))ical Botanic (Jardeii." By M. Trcul). (l>'rom the SmiMisonian 

 Report for 1890.) Octavo ijanijihlet of 18 i)agcs. 



No. 818. ''Temperature and Life." By Henry de Varigny. (From the Smithso- 

 nian Report for 1890.) Octavo ])amphlet of 18 pages. 



No. 819. "Morphology of the Blood Corpuscles." l>y Cliarles-Sedgwick Minot. 

 (From the Smithsonian Re))ort for 1890.) Octavo ])am])lilet of 3 pages; illustrated 

 with 1 plate. 



No. 820. "Weismann's Theory of Heredity." liy George .1. Romanes. (I'romtho 

 Smithsonian Rciport for 1890.) Octavo pamphlet of 14 pages, 



H. Mis. lU G 



