302 PROCEEDINGS. 



tralian sheep in country affected with Cumberland Disease or 

 Splenic Fever " by M. Adrien Loir. 



Mr. Charles Moore, f.l.s., f.z.s., expressed his sense of the 

 value of the paper. He was quite sure that Mons. Loir was right 

 In his conclusions. It was no use burying the dead animals ; they 

 must be burned to prevent infection. 



Professor Anderson Stuart, m.d., considered that the thanks 

 •of the Pastoralists were due to the author of the paper, and thought 

 that the suggestion of Mons. Loir, that the Pastoralists should 

 take precautions to prevent the export of any infected carcases, 

 was an excellent one. If any of the microbes were found in 

 Europe in meat received from Australia the fact would be sure to 

 Ibe made the most of by interested parties, and it would prove to 

 be the death-knell to the trade. 



The Hon. Dr, MacLaurin, m.l.c, pointed out that the law 

 already provided for the dealing with persons who sold diseased 

 meat. He fancied that exporters would see that it would be not 

 only wicked but foolish to send such meat to market. If they 

 •exported it they did so in contravention of the law. 



Exhibits. 

 Demonstration of a new Machine for use in explaining the Nature 

 of such Waves as those of Light, by Prof. Axderson Stuart, m.d. 

 The instrument, to which he had not yet given a name, showed 

 the movements of pellets of ivory, which represented particles of 

 «,ir as they oscillated to and fro. The first idea which led him to 

 •construct the apparatus was obtained from the oscillation of the 

 legs of the centipede, which moved in a double wave — as seen 

 from above, in waves of condensation and rarefaction ; as seen 

 from the side, in vertical waves. The instrument was described 

 as accurately representing the to-and-fro movement of the particles 

 of air. The sound wave, as it were, could therefore be seen pro 

 gressing from one end of the instrument to the other. 



The Tintometer. — Mr. W. A. Dixon, f.i.c, f.c.s., exhibited 

 this instrument as made by J. W. Lovibond of Salisbury, England. 



