Vili dONTENT^. 



I.— Recoiid op Science fok 1887 and 1888 .*..*.. 1J5 



Astroaomy, by Williaui C. Wiulock I'i5 



Geology, by W J McGee o 217 



North American Palieontology, by Heury S. Williauis 261 



Petrograph J', by George P. Merrill ..., 327 



Meteorology, by Cleveland Abbe 355 



Chemistry, by F.W.Clarke 425 



Mineralogy, by Edward S. Daua 455 



Botany, by F. H. Kuo wlton 475 



Anthropology, by Otis T. Mason 497 



II. — Miscellaneous Papers 583 



Chronology of the Human Period, by J. Woodbridge Davis 583 



Were the Osages, Mound builders? by J. F. Snyder 587 



The progress of Science as exemplified in the art of Weighing and Meas- 

 uring, by William Harkuess 597 



Determiuatioa of the mean Density of the Earth by means of a [)endulura 



l)riiiciple, by J. Wilsiug G35 



Amerriques, Amerigho Vespucci, and America, by Jules Marcou 647 



Progress of Oriental Science in Americai, during 1888, by Cyrus Adler 675 



III.— BioGHAPHicAL Memoirs 703 



Spencer F. Baird,by Robert Eidgway 703 



Memorial nieetiug of Washington Societies. 715 



by Garnck Mallery .j. 717 



by Wniiam B. Taylor 7-^1 



by William H. Dall 7:51 



by John W. Powell 739 



Asa Gray, by James D. Dana 745 



by William G. Farlow 763 



List of his writings 785 



LIST OF ILLUSTRATIONS. 



Article on Meteorolof/y. 



Fig. 1. Curves showing wind currents 389 



Fig. 2. Isotherms 392 



Fig. 3. Adiabatic curve 393 



Fig. 4. Dew-point curve 395 



Fig. 5. Adiabatic curves 399 



Fig. 6. Adiabatic curves 401 



Fig. 7. Adiabatic curves 402 



Jrticle OH the name America. 



Sketch Map of part of Central America 6.52 



Cut of Amerigho Vespncci's signature 6.56 



Fac-simiie of letter by Amerigho Vespucci 6.57 



Index to the volume ^ 827 



