CATALOGUE OF PUBLICATIONS. 503 



78. Smithsonian Coiitribntions to Knowledge. Vol. viii. 1856. 4to., 



pp. 504, 52 woodcuts, !) plates. 



CONTENTS. 



Havex, S. F. Archiuoloyy of the United 8t:itc.s. No. 71. 



Olmsted, D. Receut secular period of aurora borealis. N0.8L 



Alvord, B. Tangencies of circles and of spheres. No. 80. 



Jones, J. Chemical and ijhysiological investigations relative to verte- 



brata. No. 82. 

 Force, P. Auroral phenomena in higher northern latitudes. No. 84. 

 Publications of societies and periodicals in Smithsonian Library. Part 11. 



No. 85. 



79. ISTew Tables for determining the Values of the Coefficients iu the 



Perturbative Functiou of Planetary Motion, which depend upon 

 the ratio of the meau distances. By John D. Runkle. No- 

 vember, 185G. 4to., pp. ()4. (S. C, IX.) 



80. The Taugeucies of Circles and Spheres. By Benjamin Alvord. 



January, 1850. 4to., pp. IG, 25 wood-cuts, 9 plates of 20 figures. 

 (S. C, vm.) 



81. On the recent Secular Period of the Aurora Borealis. By Denison 



Olmsted. May, 1850. 4to., pp. 52. (S. C, viii.) 



82. Investigations, Chemical and Physiological, relative to certain 



Americauta Vertebrata. By Joseph Jones. July, 1850. 4 to., 

 pp. 150, 27 wood-cuts. {S. C, viii.) 



83. On the Relative Intensity of the Heat and Light of the Sun upon 



Different Latitudes of the Earth. By L. VV. Meech. JSTovem- 

 ber, 1850. 4to., pp. 58, 5 wood-cuts, plates of 9 figures. (S. 

 C, IX.) 



84. Record of Auroral Phenomena observed iu the higher Northern 



Latitudes. By Peter Force. July, 1850. 4to., pp. 122. (S. 

 C, viil) 



85. Publications of Learned Societies and Periodicals in the Library 



of the Smithonian Institution. Part 11. May, 1850. 4to., pp. 

 38. (S. C, VIII.) 



86. Observations on Mexican History and Archaeology, with a special 



notice of Zapotec Remains, as delineated in Mr. J. G. Sawkins's 

 drawings of Mitla, etc. By Bkantz Mayer. November, 

 1850. 4to., pp. 30, 17 wood-cuts, 4 plates of figures. (S. 

 C, IX.) 



87. Psychrometrical Table for Determining the Elastic Force of Aque- 



ous Vapor, and the Relative Humidity of the Atmosphere from 

 indications of the Wet and the Dry Bulb Thermometer, Fahr- 

 enheit. By James H. Coffin. 1850. 8vo., pp. 20. (M. 



C, L) 



88. Researches on the Ammonia-cobalt Bases. By Wolcott Gibbs 



and Frederick Aug. Genth. December, 1850. 4to., pp. 72, 21 

 wood-cuts. (S. C, IX.) 



