646 General Monthly Meeting. [April 4, 



National Association for the Promotion of Social Science — Transactions at the 



Edinburgh Meeting, 1880. 8vo. 1881. 

 Pharmaceutical Society of Great Britain — Journal, March, 1881. 8vo. 

 Photographic Society— Journoi, New Series, Vol. V. No. 6. 8vo. 1881. 

 Plateau, M. J. F.B.S. Hon. M.R.I, {the ^wf/ior)— Bibliographic des Principaux 



Phenomenes subjectifs de la Vision. 2^ Supplement. 4to. 1880. 

 Preussische Akademie der Wissenschaften — Monatsberichte : Nov. 1880. 8vo. 

 Poijal Society of London — Proceedings, Nos. 209, 210. 8vo. 1881. 

 Bussell, The Hon. Rollo, F.M.S. M.R.L (the Author)— London Fogs. (K 104) 8vo. 



1880. 

 Smithsonian Institution, Washington, JJ-S. — James Smithson and his Bequest. 



By W. J. Bhees. 8vo. 1880. 

 Stone, Dr. Wm. H. (the ^w^/ior)— Elementary Lessons on Sound. 16to. 1879. 

 Symons, G. /.—Monthly Meteorological Magazine, March, 1881. 8vo. 

 tidy, C. Meymott, Esq. M.B. M.R.L (the Author)— ^inot Water. (No. 2) A 



Reply to Dr. Frankland. (K 104) 8vo. 1881. 

 Verein zur Beforderung des Gewerhfleisses in Preussen — Verhandlungen, 1881 : 



No. 3. 4to. 

 Wells, T. Spencer, Esq. M.R.L (the Author)— Cremsitioii or Burial (K 104) Svo. 



1880. 

 Yorkshire Archseological and Topographical Association— J o\iVTiQ\, Parts 23 and 24. 



Svo. 1881. 



WEEKLY EVENING MEETING, 

 Friday, April 8, 1881. 



George Busk, Esq. F.R.S. Treasurer and Vice-President, in the Chair. 



Professor Tyndall, D.C.L. F.E.S. M.B.L 



The Conversion of Badiant Heat into Sound. 



CAbstract Deferred.) 



