HAMILTON vSCIENTIFIC ASSOCIATION 13 



as by valuable slides, the injurious effects of the electric cur- 

 rent when not properly insulated and controlled. 



A hearty vote of thanks was tendered the lecturer for 

 his very valuable paper. 



THURSDAY, FEB. 7th, 1907 



REGULAR MEETING. 



President R. J. Hill in the chair. John Allan and Wm. 

 Hess became members. 



Prof. W. A. Parks, M.A., gave an authoritative lecture on 

 " The Cobalt Mining District, Past and Present." 



After giving full details of the Government work and 

 surveys, he expressed surprise that more had not been done 

 sooner after discovery and that old prospectors had missed 

 the prize over which they had gone and failed to find. He 

 also spoke of the failure of the Indians to bring these 

 treasures to the knowledge of the white man. The learned 

 lecturer spoke discouragingly of the expectations of some 

 that the gold mining of New Ontario would prove very 

 profitable. 



THURSDAY, FEB. 21st, 1907 



SPECIAI, MEETING. 



President R. J. Hill in the chair. Hugh Allen and Dr. 

 G. C. Buchanan became members. 



S. B. Chadsey, B.A., ScB., gave a talk on Malleable 

 Iron. By means of numernus specimens of metal, in succeed- 

 ing stages of the processes employed, he illustrated the con- 

 ditions from the very brittle product of the first casting to the 

 astonishing strong, comparatively pliable product of the 

 annealing ovens. 



By means of a very complete set of slides the whole pro- 

 cess was clearly shown, and the lecturer received the hearty 

 thanks of the audience for his highly instructive presentation 

 of a subject so little known to the general public. 



