xii Proceedings. {February 2nd, IQO^.^ 



donations to the Society's Xxhxaxy :—^^ Zelandia Jllusirata" 3* 

 Vervolg. By M. Fokker. (8vo., Middelburg, 1902), presented by 

 the Zeeuwsch Genootschap der Wetenschappen ; ^^Pharmaceutical 

 Society of Great Britain. The Museum Report ^^ by E. M. Holmes 

 (8vo., London, 1903), presented by the Pharmaceutical Society;: 

 " Codex Diplomaticus Lausatice Super torts, II" .. .YiexaMSg. von 

 R. Jecht, Bd. 2, Hft. 4, presented by the Oberlausitzische 

 Gesellschaft der Wissenschaften. 



The President informed the meeting that Dr. Wilde had 

 presented to the Society a marble columnar pedestal on which 

 to place the bust of Dr. Dalton, presented some time ago by 

 Sir Henry E. Roscoe, and proposed that the best thanks of the 

 Society be accorded to Dr. Wilde for his generous gift. 



A resolution was adopted, proposed by Professor Dixon, 

 that a letter of congratulation be sent to one of its Honorary 

 Members, Professor D. Mendeleefif, whose 71st birthday was to 

 be celebrated in St. Petersburg during the next week, 



Mr. C. E. Stromeyer, M.Inst.C.E., exhibited an interesting 

 photograph of a flash of lightning, taken at Johannesburg, in 

 which two distinct parallel images were seen. These were pro- 

 duced by moving the camera quickly during the passage of the 

 lightning. 



Dr. Charles H. Lees exhibited a screen, made by Professor 

 Wood, of Johns Hopkins University, America, for cutting off all 

 but the ultra-violet rays ; two film photographs (prepared by 

 Miss C. Radford) of the spectrum of iron, one of which was takeff 

 without and the other with the opaque screen; and a cyanine 

 prism for showing the phenomenon of anomalous dispersion. 



Dr. Lees also showed a number of cloud photographs, 

 which had been lent for the purpose, and included many 

 varieties not usually available as lantern slides. 



Mr. R. L. Taylor, F.C.S., F.I.C., called attention to the 

 large quantities of arsenic existing in some, but not all, of the 

 green wax tapers now on sale in the shops of Manchester, the 



