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polariscope and otherwise, was a most interesting study, and he 

 recommended members who wanted a subject to take it up. The 

 section of Limestone on the table was a fine section, and well cut. 

 He had made a good many sections from Jutland Slate showing 

 sections of Diatoms, Coscinodiscus and other forms, in different 

 planes. It was evident that these diatoms had been deposited 

 in very quiet Avater, as all were lying on their flat side, and 

 horizontal sections of the rock showed the circular form and 

 vertical sections the transverse section of the diatoms. 



Mr. Stokes inquired if the secondary structure could be traced. 



Mr. Morland replied that it could not, but the shape of the 

 cells could be seen most distinctly, and the eye-spot was marked in 

 the interior by small tubes, which were cut straight across in the 

 section. 



A hearty vote of thanks to Mr. Curties was passed. 



The meeting closed with the usual conversazione. 



April 19th, 1901. — Ordinary Meeting. 

 George Massee, Esq., President, in the chair. 



The minutes of the meeting of March 15th, were read and 

 confirmed. 



The following gentlemen were balloted for and duly elected 

 members of the Club : — Mr. W. H. Browne, Mr. Walter C. 

 Kailton, Mr. Rowland R. Kobbins. 



The additions to the Library were announced. 



The Secretary said that they had also received from Mr. James 

 Mottram a very valuable addition to their Cabinet. It would be 

 remembered that about two years ago Mr. Nelson presented 

 the Club with a hundred slides of diatoms from the Hamilton - 

 Smith collection. Mr. Mottram, hearing of this, said that he 

 would at a future date present the remainder, and this he had 

 now done ; so that the Club was in possession of the whole series 

 of four hundred slides, all of which were in excellent condition, 

 and would be available for the use of the members as soon as 

 Mr. Sid well had time to arrange them. The Committee had 



