314 British Association for the Advancement of Science. 



Dr. Granville exhibited an improved Stethoscope^ a ball-and- 

 socket joint being attached to the ear-piece, which thus becomes 

 movable with the cylinder at any angle which may be required. 



Dr. Rees read a paper on the chemical nature of the Liquor 

 Amnii. 



Dr. R. D. Thomson read a paper on the modus operandi of 

 Nitrate of Silve?' as a caustic and therapeutic agent. 



Mr. Greenhow read a brief tnemoir on fractures, for the pur- 

 pose of introducing a model of a new sling fracture bed, applica- 

 ble to every fracture in the lower extremity, but peculiarly adapted 

 to the treatment of compound fractures of the femur. 



Dr. Bowring communicated some observations on Plague and 

 Q,uara7itine made during his residence in the East. The re- 

 sults of his observation had produced in his mind a strong con- 

 viction of the non-contagiousness of the plague. Quarantine re- 

 strictions are consequently altogether useless vexations. 



Mr. Goodsir read a paper on the origin a7id subsequent develop- 

 m,e7it of the human teeth. 



A paper by Dr. Spittal was read, entitled " Experiments and 

 Observations on the cause of-the Sounds of Respiration." 



Dr. A. T. Thomson read a paper on the medicinal and poison- 

 ous pi^operties of some of the Iodides. The principal preparation 

 whose action was detailed, was the iodide of arsenic. The action 

 of this medicine in very minute doses, from J to ^ of a grain, was 

 peculiarly serviceable in Lepra vulgaris and chronic impetigo. A- 

 case of numerous tumors resembling carcinoma was found to yield 

 to its continued action, and it was found equally successful in a 

 more decided case of incipient carcinoma. 



Section F. Statistics. 



The first paper read was a Report from Mr. J. Stephens, super- 

 intendent of police, On the State of Crime in Newcastle, during 

 the last ten months. This was simply such a return as is usually 

 made from police offices. 



Mr. G. R. Porter read a statistical Vieio of the recent progress 

 and present amount of mining industry in France. This is an 

 elaborate Report, and comprises the mining operations in coal, 

 iron, lead, silver, antimony, copper, and manganese. 



Col. Sykes read a very minute and detailed account of the 

 Statistics of Vitality in Cadiz. He submitted an immense mass 

 of valuable tables and returns, which will probably be published. 



