XXXVI. ABSTRACT OF PROCEEDINGS. 



22. Models, etc., from Technological Museum. — R. T. Baker, 

 Esq., f.l.s , Curator, (a) Models of meteorites ; (b) New South 

 Wales marbles ; (c) Models of fungi ; (d) Models of New South 

 Wales fishes. 



23. Old Prayer Books, 1660, 1714.— P. C. Trebeck, Esq., 



F.R.Met.Soc. 



24. Zeiss' Stereoscopic microscope. — Professor W. H. Warren, 



Wh. Sc, M. Inst. C.E., Professor of Engineering. 



LABORATORIES. 



25. Chemical Laboratory. — Prof. Liversidge, m.a., ll.d., f.r.s., 

 (a) Pieces of apparatus used for various chemical purposes ; (b) 

 Spectroscopes showing various emission and absorption spectra; 

 (c) Nernst electric lamp, in which a filament composed of magnesia 

 is used instead of a carbon filament ; (d) Plans of some American 

 Mining Schools ; (e) The recent additions to the Chemical Depart- 

 ment for Metallurgy and Assaying were thrown open for inspec- 

 tion : — These include a building for the crushing, concentrating, 

 and extraction of minerals, an asphalted yard for out-door work, 

 and a new Assay Laboratory; the former building contains a set 

 of stamps (Krupps) presented by Messrs. Noyes Bros., Sydney; 

 Challenge ore feeder, presented by Messrs. Park and Lacey, Sydney; 

 Gate's Rock-breaker; Roger's Rolls; Amalgamating pans; Green's 

 trommels, elevators, samplers; frue vanner ; jigs, etc. ; a roasting 

 furnace, with a bed 6x4 feet ; (as far as possible the appliances 

 are of such size as to be conveniently worked by students) ; also 

 the vats and' necessary appliances for the extraction of gold and 

 silver by chlorine, cyanide, and hyposulphite solutions; the new 

 Assay Laboratory is a well ventilated and well lighted building, 

 55 feet x 41 feet, with a height of 35 feet in the centre, it contains 

 12 muffle and 20 melting furnaces, together with 32 working 

 benches fitted with draught cupboards, gas, water, and exhaust 

 pumps. 



26. Geological and Mining Laboratories. — Prof. T. W. E. David, 

 b.a., f.r.s., (a) Lantern views of Cambrian Glacial beds recently 

 discovered by Mr. Howchin in South Australia, and of the Mt. 



