328 



." The Essex Naturalist " From the Editor. 



" Science Gossip " 



" Le Diatomiste " 



" La Nuova Notarisia " ... 



Paper by Jansen on the " Philodinao "... Mr. Rousselet. 



" Annals of Natural History "... ... Purchased. 



The thanks of the Club were voted to the donors. 



Mr. Karop said that some time ago Mr. Gill gave him some 

 diatoms obtained from the river Lea. He wanted them for a 

 particular purjoose, but having put them in a window and left 

 them they got spoilt for what he wanted them for. However, 

 he cleaned the material, and on examining the result came 

 across a specimen of a rather uncommon species — Staiironeis 

 legumen^ Ehrenberg, It had recently been noticed in an 

 American journal as having been found in America, but it was 

 hitherto unreported from the river Lea as far as he knew. 



Mr. T. F. Smith exhibited and described a new objective by 

 Swift, which had been sent to him for examination. It was 

 a yo^^ ^i-'^ immersion, not apochromatic, but entirely free from 

 colour. By way of testing it he had taken some photographs 

 with it, and also for comparison with one of Zeiss's apochro- 

 matics of I'4 N.A., and though he could not say that it was in 

 every respect as good, it was so good that there was nothing 

 shown by the one that could not be seen with the other, and 

 anything which could be photographed by Zeiss's came out 

 true to focus with the new lens with an isochromatic plate. 



The President said the photographs were both excellent 

 specimens, but he thought there was a little balance in favour 

 of the one marked with a x , which he understood was taken by 

 Zeiss's lens ; they were, however, both marvellously good. 



Mr. C. Rousselet read a j^aper by Mr. John Hood, of Dun- 

 dee, describing three new species of Rotifers. 



Mr. Western said he had seen one of the specimens men- 

 tioned, aiid could testify to the truth of the description given. 

 He thought they were much indebted to Mr. Hood for forward- 

 ing them this account for publication in the Journal. 



The thanks of the Club were voted to Mr. Rousselet and Mr. 

 Hood. 



Mr. Buffham read a paper " On the Antheridia of some 

 Floridese." 



