158 



that even though the heart be stopped artificial respiration should 

 still be continued, for the movement of the chest in respiration 

 not only drew air in but pushed air out of the chest, and also 

 exercised an efficient mechanical action upon the heart itself, and 

 carried on the circulation of the blood. The lesson to be learned 

 from such a model was, he said, that even for a considerable time 

 after the heart had stopped artificial respiration should be con- 

 tinued in cases of sufibcation from whatever cause. Other exhibits 

 by Professor Stuart were models of his own invention, showing 



how the smaller canals were in all probability the under-organs of 

 the senses of space. He further had on view Merey's apparatus 

 demonstrating that it is better to interpose an elastic medium 

 between, say a horse and a waggon, instead of employing a rigid 



By the courtesy of the Mines Department, a number of excellent 

 fossils from the Geological Museum were displayed. These were 

 in charge of Mr. Carne, and consisted of " lower mesozoic plant 

 and tish remains found near Tallragar River." and " remains of 

 •extinct marsupials from post-tertiary ossiferous clays near Myafl 

 Creek, Bingera," descriptions of which are contained in the pub- 

 lished " Records of the Geological Survey of New South Wales." 



Mr. Wilkinson, the Government Geologist, placed on view a 

 map prepared by the Department of Mines and Water Supply, 

 Melbourne, of " Continental Australia." 



Professor Liversidge exhibited a polished section through the 

 Thunda Meteorite from Queensland, and a model of the complete 

 Meteorite before cutting. 



Mr, Hargrave exhibited his new type of engine for a screw- 

 driven Flying-machine. 



Mr. Hamlet, the Government Analyst, exhibited a new burglars' 



Mr. T. F. Weissener exhibited one of Edison's phonographs, 

 and a number of recent microscopic instruments. 



Professor Warren, the recording portion of his testing machine. 



Professor Threlfall, methods of testing the speed of sound waves. 



The following gentlemen also kindly assisted by the loan of 

 ■exhibits : — Messrs. S. Cornwell, two microscopes and spectroscope ; 

 P. J. Edmunds, prismatic magnifying spectacles, apparatus and 

 diagrams; F. B. Gipps, photo album. Darling River in Flood; G. T>. 

 Hirst, instantaneous photograph of lightning ; E. L. Montefiore, 

 ■copy of the Observatar published 1683, copy of the London Herald 

 Jany. 28th 1797, containing a letter from Botany Bay dated 28th 

 Dec, 1795 ; Hon. James Norton m.l.c., eight large photos of the 

 Hawkesbury Sandstone ; P. C. Trebeck, twenty instantaneous 



