250 



placed below it, so as to enable anyone to draw it. The striic- 

 tore of the arrangement and the method of using were 

 described. In reply to a question it was explained that the 

 image obtained was inverted and transposed, as seen in the 

 microscope, and not as was the case with drawings made with 

 the camera lucida, which corrects the inversion, but leaves the 

 transposition. 



Mr. Western read some interesting extracts from a letter 

 received from Surgeon Gunson Thorpe, R.N., whose ship at the 

 date of writing was lying in the Yangtze-Kiang river, on the 

 China Station. The writer mentioned the extreme richness of 

 the fresh water pools of the district as regarded Rotifers, and 

 promised in a future communication to send detailed descrip- 

 tions of some new and remarkable forms of Melicerta, Trocho- 

 sphera, and Lacimilaria which he had recently met with. 



Mr. Scourfield read his paper "On the Entomostraca of 

 Wan stead Park." 



The Chairman was sure all present would agree with him 

 that Mr. Scourfield had given them a most excellent paper, in 

 which the subject had been treated in a most masterly way. 

 The publication in the Journal of the curves, which had been 

 drawn in illustration of the abundance of various species at 

 different times in the year, would add greatly to the interest of 

 the paper when printed. 



Mr. Karop was very glad that Mr. Scourfield had come 

 forward with this paper on a subject which had been so 

 little touched upon. When he read his last paper the hope 

 was expressed that he would follow it up by others, as it 

 appeared that they had never before had a paper read at the 

 Club on the Entomostraca. 



Mr. T. F. Smith read a paper " On Photo-Micrography, with 

 Iso- Chromatic Plates," the subject being illustrated by a 

 number of photographs, which it was explained had been taken 

 by Messrs. Swift's latest series of objectives made with Jena 

 o-lass. In the case of the Jin. no eye-piece had been used. 



The Chairman thought some of these photographs were very 

 beautiful ; so good, indeed, that they bore examination with a 



lens. 



Mr. Karop said he had been also struck with the excellence 

 of these photographs. He did not remember to have seen any 



