PROCEEDINGS. 335 



The Macleay Museum, Library, and the various Lecture Rooms 

 were also thrown open to the visitors. 



The guests numbered about six hundred. 



Unfortunately His Excellency The Governor, was absent from 

 town, and His Excellency Vice Admiral N. Bowden Smith, r.n., 

 was unable to be present. Owing to an important sitting of the 

 House, neither the Premier, the Hon. G. H. Reid, nor the other 

 members of the Ministry could attend. 



Catalogue of Exhitits. 

 The Laboratories in the University Grounds. 

 Chemical Laboratory (Prof. Liversidge, m.a., f.r.s.) — Photo- 

 graphs of sections of gold nuggets, native gold. Gold in quartz, 

 calcite, serpentine, &c. 



Physical Laboratory (Prof. Threlfall, m.a.) — Apparatus for 

 measurement of high specific resistances. Collection of samples 

 of the modification of sulphur of great purity. Appliances for 

 investigating feeble magnetic properties. 



Engineering Laboratory (Prof. Warren, m. inst. c.e., ¥h. Se.) 

 — The Engineering Laboratory with its apparatus and machinery 

 was open, and the following experiments were made : — 



1. A beam of iron-bark timber, twelve inches square, was broken 

 on a span of fifteen feet, with a central load of thirty-seven tons. 

 The machine was specially made for Prof. Warren by Messrs. 

 Joshua Buckton & Co., of Leeds, and consists of one central 

 hydraulic press for tension and compression pieces ten feet long, 

 up to one hundred tons load ; two cross-breaking presses to test 

 beams up to a span of fifteen feet, and one hundred tons central 

 load. The machine is also arranged for torsion, and is provided with 

 Wicksteed's autographic apparatus. 



2. Two pieces of dicker's axle steel were tested in the 100000 

 pounds machine made by Messrs. Greenwood & Batley, Leeds, 

 and autographic diagrams were drawn by an apparatus made in 

 the laboratory ; Kennedy's extensometer was also shown on this 

 machine. 



