1921] General Monthly Meeting 405 



Gaedhart, J. G. A. (the Author) — The Spiral Orbit in Celestial Mechanics, 



Parts 1-2. 8voand4to. 1921. 

 Gauthier-Villars et Cie (the Publishers) — D'Alembert, J.: Traite de Dyna- 

 mique. 2 vols. 12mo. 1921. 

 Dutrochet, R. : Les Mouvements des Vegetaux— Du Reveil et du Sommeil 



des Plantes. 12mo. 1921. 

 Geneva, Society de Physique — Memoires, Vol. XXXIX. Fasc. P. 4to. 1921. 

 Geological Society of London — Quarterly Journal, Vol. LXXVII. Part 1. 8vo. 



.1921. 

 Abstracts of Proceedings, Nos. 1071-1072. 8vo. 1921. 

 Horological Institute, British — Horological Journal, Juue 1921. 8vo. 

 Illuminating Engineering Society — Illuminating Engineer, Feb. 1921. Svo. 

 London County Council — Gazette, May 1921. 4to. 

 London Society — Journal, May 1921. 8vo. 

 Manchester Literary and Philosophical Society — Proceedings, Vol. LXIV. 



Part 1. 8vo. 1921. 

 Mersey Conservancy — Report on Navigation of River Mersey, 1920. 8vo. 1921 . 

 Meteorological Office — Daily Readings, March 1921. 4to. 

 Paris, Societi d' Encouragement pour V Industrie Nationale — Bulletin, April 



1921. 8vo. 

 Paris, Socie'te Frangaise de Physique — Journal de Physique et le Radium, 



Serie VI. Tome II. No. 4. 8vo. 1921. 

 Proces- Verba ux, 1920. 8vo. 1921. 

 Pharmaceutical Society of Great Britain — Journal, May 1921. 8vo. 

 Photographic Society, Boy al— Journal, N.S., Vol. XLV. No. 6. Svo. 1921. 



Photographic Abstracts, Vol I. No. 1. Svo. 1921. 

 Physical Society of London -Proceedings, Vol. XXXIII. Part 3. 8vo. 1921. 

 Boyal Engineers' Institute— Journal, Vol XXXIII. No. 6. 8vo. 1921. 

 Royal Society of Arts — Journal, May 1921. Svo. 



Boyal Society of Edinburgh — Proceedings, Vol. XLI. Part 1. 8vo. 1921. 

 Boyal Society of London — Philosophical Transactions, A, Vol. CCXXII. 



No. 594. 4to. 1921. 

 Salomons, Sir D. L., Bart., D.L. J. P. M.A. F.R.A.S. M.B.I, (the Author)— 



Breguet (1747-1823). Svo. 1921. 

 Sanitary Institute, Boyal — Journal, Vol. XLI. No. 5. 8v~>. 1921. 

 Smithsonian Institution — Report on U.S. National Museum, 1920. Svo. 

 South Africa, Union of — Journal of Agriculture, May 1921. Svo. 

 True Temperance Association — True Temperance Monographs. Svo. 1021. 

 Ulbrich, O. (the Author) — Kosmische Chemie. 8vo. 1920. 

 United States Department of Agriculture — Journal of Agricultural Research. 



Vol. XXI. No. 1-2. 8vo. 1921. 

 Experiment Station Record, Vol. XLIV. No. 4. 8vo. 1921. 

 United States Patent Office— Official Gazette, Vcl. CCLXXXV. No. 2-Vol. 



CCLXXXVI. No. 1. Svo. 1921. 

 Washington, Library of Congress — Report, 1920. 8vo. 1921. 



Publications. 8vo. * 1920. 

 Wright, W. H. (the Author) —The Spectra of the Temporary Stars as observed 



at Lick Observatory. 4to. 1921. 



