XXVI. 



January 12th. 



Adjourned discussion on Prof. Fawsitt's paper in the Chemistry 

 department. 



In the Engineering School — 



" Modern Lighthouse Illumination." J. Shirra, Chief Engineer 

 Surveyor. Department of Navigation, Sydney. 



Demonstration of boomerang throwing by Dr. Sutton. This 

 illustrated the paper given by Mr. Higgins. 



An excursion was held on Thursday afternoon. January 12th, 

 to view the various works carried out by the Sydney Harbour Trust 

 in different parts of the harbour ; a visit was also paid to the 

 State Government Dockyard at Cockatoo Island. 



By the courtesy of the Harbour Trust Commissioners, a launch 

 was placed at the disposal of members of the Association, leaving 

 the Harbour Trust Wharf, Circular Quay (opposite the offices of the 

 Harbour Trust), at 2.15 p.m. 



Members of other Sections who intended to make this excur- 

 sion were asked to communicate with the Secretary, Section H,.as 

 the available accommodation was limited. 



January 13th. 



Sectional Committee met. 



The following Papers were read : — 



" The Hardness of N.S.W. Timbers and Resistance to In- 

 dentation as shown by the Brinell Ball and Cone Pres- 

 sure Tests ; also by the Cross Compression Test." 

 Prof. W. H. Warren and G. F. Cowdery. 



" The Resistance of N.S.W. Timbers to Abrasion, and the 

 Wear in Floors and Street Pavements, as shown by the 

 Sand Blast Apparatus." Prof. W. H. Warren and 

 McD. J. Royle. 



"The Holding Power of Nails and Dog Spikes in N.S.W. 

 Timbers." Prof. W. H. Warren and H. A. Roberts. 



" Reinforced Concrete in Building Construction." J. 

 Nangle. 



" On Waterways." J. Vicars. 



Through the kindness of Mr. Lucy, Chief Mechanical Engineer, 

 an inspection of the railway workshops at Eveleigh was made on 

 Friday afternoon. Members desiring to attend were requested to 

 meet at the offices of the Chief Mechanical Engineer, Eveleigh, at 

 2.30 p.m., and take Alexandria tram to Abercrombie-street. 



