VI CONTENTS. 
THE SMITHSONIAN INSTITUTION—Continued. Page. 
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APPENDIXES: 
Appendix I. Report of the Director of the Bureau of Ethnology....---- 29 
I Report of the Curator of Pxchanieesiesssas-4 2542s eee 38 
Ill. Report of the Acting Manager of the National Zodlogical 
Parks seis ye sed, fe he eh Sneek eee eng ee eee 48 
DVesiveport of che ruilbranianees = sseeene eee eee ee eee anes 53 
Vi. Reportion publicationsiforithenyeanesseseessseee ee ese eee 60 
GENERAL APPENDIX. 
AA VerbiSOMeMnbis j-cemsnce oes ee See oti eae cee ae a Ree ee eae eee eee 67 
Celestial Spectroscopy, by William Huggins... -5--e 05 -sees-e Saoee C= Soe 69 
Stellar Numbers and Distances, by A. M. Clerke.....-.--...-....---2------- . 103 
Rh eiS Uns AO LOneANUS pace. moiyp Atm vin ©) ems cere ee eee ee 109 
AGSoutherneObservatony, byeA. MM. Clerket sees nee e ene eee ee 115 
Applications of Physics and Mathematics to Geology, by C. Chree..---..---- 127 
Origin of the Rock-pressure of Natural Gas, by Edward Orton.-...---..------ 155 
Geysers, "by WialltersrlarveynWieeda- 22... 25:5. 55a eee pen eee ee eee 163 
The General Circulation of the Atmosphere, by Werner von Siemens - -.--.. ---- 179 
hei Guilt-streamy byealexandensAtmassiz eres -m oes. eee eee eee eee 189 
Absolute Measurement of Hardness, by F. Auerbach .................-.------ 207 
The Flow of Solids, by William Hallock.._--. WS ocd 1i Re ee en eee 237 
ihe Scientific WiorkiofiGa.s.Ohm bya Ee Wommels--4- 5 sseeeeeeee se sees 247 
Autobiographical: Sketch\otedenvon lie biome ss 25225522 eee eee 257 
Divergent Kvolution Through Cumulative Segregation, by J. T. Gulick....-. 269 
The Struggle for Life in the Forest, by James Rodway..-.......-----.-------- 337 
Dithiculiresror Aquatienims eebaysiyalaen © ay in alll epee apes ee 349 
Geographic Distribution of Mammals, by C. Hart Merriam ...._....-....---- 365 
Phe orbimiGameve ark bya One les S10 Cases se seen 417 
Phe Home of the Troglodytes, by EB. 0. Hamyi 2-22-22. 22 5.2.-2 e ee 425 
Summary of Progress in Anthropology in 1891, by O. T. Mason........------- 433 
The Mounds of the Mississippi Valley, by Lucien Carr................--.---- 505 
The Use of Flint Blades to work Pine Wood, by G. V. Smith ............---- 601 
Time-keeping among the Chinese, by D. J. Magowan .......-..-...---.------ 607 
Navajo Dye-stuits; by Washington Matthewsssseoseeseseoses -2 ool eae eeeeeeee 613 
Some Possibilities of Economic Botany, by George L. Goodale......---..----- 617 
