139 
PROCEEDINGS OF THE SOCIETY. 
MEETING 
Held on December 15th, 1897, at 20 Hanover Square, W., 
The President (E. M. Nelson, Esq.) in the Chair. 
The Minutes of the Meeting of 17tli November last were read and 
confirmed, and were signed by the President. 
The President said no doubt most of those present were aware 1 of 
the loss the Society had sustained by the death of one of their best 
known Fellows, Mr. Thomas Curties, who had not only done a great deal 
towards advancing microscopy, but had been of great assistance in 
many ways both to the Royal Microscopical Society and to the Quekett 
Microscopical Club, and especially in reference to the number of Fellows 
whom he had induced to join. All who knew him would be very 
sorry to hear of the loss they had sustained. 
Mr. Measures said he had brought for exhibition a lens which Carl 
Zeiss considered to be an advance on his previous lenses for low power 
photography. In illustration of its performance he had brought for com- 
parison two large photographs, one of which was taken with a projection 
apochromatic lens of 35 mm., and the other with the new lens, “planar,” 
of the same power, under exactly the same conditions, x 31^, and same 
camera extension, viz. 44 in. The photographs being of the same object 
(a spider) and of precisely the same size, would speak for themselves. 
These lenses were made of 20, 50, 75, and 100 mm., and the price of 
any of these was 6Z. Of these the 20 mm. and 50 mm. were fitted with 
the Society’s screw to fit the nose of the Microscope in addition to the 
usual flange for direct attachment to the camera front. 
Mr. T. Comber said he had examined these photographs before the 
meeting. Low power photography was not much in his line, although 
he had occasionally used a lens of 35 mm. All he could say was that if 
the photographs before them showed properly the comparative merits of 
the two lenses, there was no doubt in his mind that the new combination 
was a very great advance upon the old one ; he thought the prints fully 
illustrated this. 
The President said he could quite endorse what Mr. Comber had 
said with regard to these lenses ; he thought there could be no doubt that 
the difference in covering power between these two lenses Was enormous. 
The thanks of the Society were, upon the motion of the President, 
unanimously voted to Mr. Measures for bringing these lenses to their 
notice. 
The President said that two very interesting Microscopes had been 
kindly lent to him by Mr. C. L. Curties for exhibition that evening. 
The thanks of the meeting were voted to Mr. C. L. Curties for the 
loan of these instruments (see p. 124). 
