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November 21st, 1902. — Ordinary Meeting. 



The Right Hon. Sir Ford North, F.R.S., etc., Vice-President, 



in the Chair. 



The minutes of the meeting of October 17th, 1902, were read 

 and confirmed. 



The following gentlemen were balloted for and duly elected 

 members of the Club : — Mr. G. H. Cressey, Mr. W. Fuller, Mr, 

 F. W. Heal, Mr. W. H. Langton, Mr. E. Leonard, Mr. M. 

 Roberts, Mr. R. Z. Sanderson, Mr. B. F. T. Tryon, and Mr. F. 

 Worthington. 



The additions to the Library were announced, and the thanks 

 of the Club voted to the donors. 



Mr. Swift exhibited a microscope fitted with a new form of 

 slow-motion fine adjustment — the " Ariston" — controlled by two 

 levers, both of which were isolated from the main fitting of the 

 movement. In further explanation of the construction of this 

 arrangement a sectional model was also exhibited. 



Mr. Karop said they were very much obliged to Mr. Swift for 

 bringing this ingenious adaptation of the lever principle to show 

 them ; it was a very nice way of getting a long lever, and he 

 thought it was likely to be a lasting arrangement. 



Mr. Stokes thought it was very much like a model introduced 

 some time ago by Leitz, which he called the English model. 



The thanks of the meeting were, on the motion of the Chair- 

 man, unanimously voted to Mr. Swift for his exhibit and 

 explanation. 



Mr. E. Turner then gave an extremely interesting demonstra- 

 tion of the Lumiere process of colour photography. He com- 

 menced by remarking that it had for many years been the 

 ambition of photographers to be able to produce photographs in 

 the natural colours of the objects depicted. Clerk-Maxwell and 

 others had made early attempts to achieve this, and some prints 

 exhibiting some colour were made in 1894 ; but Mr. Sanger 

 Shepherd had, by applying theory to practice, lately achieved 

 some very marvellous results, and so much had been done since 

 1890 that things which were then thought to be impossible were 

 now rendered so simple as to be within the reach of all. The 



