576 New Publications. 



condense or distinguish. The paper is divided into sections ; 

 viz. temperature, moisture, pressure, and electricity of the 

 atmosphere in relation to disease. 



The fifth article, on the Colouring Matter of Red Snow, by 

 R. J. Shuttleworth, Esq. is curious. The author learnt that 

 some patches of snow near the Hospice du Grimsel, where 

 he happened to be at the time with several distinguished 

 naturalists, were red, and proceeded to examine these appear- 

 ances, and found them to depend on the presence of various 

 undescribed infusoria, which are destroyed by heat at a few 

 degrees above the temperature of snow, and with them a 

 kind of Algae, Protococcus nivalis, which served to afford 

 them nourishment. 



Sixth, a paper translated from the Comtes Rendus, on the 

 Mollusca of the Schelles and Amirantes Islands, in which the 

 services of M. Dufo, who visited those Islands for the purpose 

 of investigating their living mollusca is pointed out by MM. 

 Dumeril, Milne, Edwards, and Blainville. 



Seventh, a summary of the discussions arising from M. 

 Mandl's recent publication on the Hair and other Tegumen- 

 tary Coverings. The most interesting remarks elicited on the 

 occasion were those relative to the art by which the Chinese 

 are capable of permanently changing the colour of hair. 

 M. l'Abbe Imbert, now favourably known by his account 

 of the Chinese method of sinking artesian wells, or spouting 

 fountains, was remarkable in Paris before his departure to 

 China for glaring red hair. On arrival at his destination, 

 those interested in his success, to prevent his detection 

 as a stranger among people universally black-haired, sub- 

 jected him to a constitutional and internal treatment, by 

 which the hair became permanently black. Another mis- 

 sionary whose locks became grey before he was allowed to 

 hold intercourse with the inhabitants, was on his arrival in 

 the celestial empire subjected to medicinal treatment, by 

 which his hair was also changed into a permanent black. 

 Eigth, on the lake of ZirJtnitz in Carniola. Two large 



