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pneumatic despatch, which was at present largely used by the 

 Post Office for blowing packages of telegrams through pipes. 

 Although he only became a member of the Club in 1896, he was 

 by no means a novice in microscopic work. When a very small 

 boy a friend took him to see Mr. Clark's microscope, and he 

 believed it was the first achromatic microscopic he ever looked 

 through. What he then saw made a very strong impression 

 upon him, which the intervening time had not effaced. The 

 objects which he remembered Mr. Clark showed him were the 

 archegones of some living mosses taken from the garden wall. 



A paper by Mr. W. H. Harris, " On Some Marine Vegetable 

 Organisms invading Calcareous Organic Remains," was read by 

 Mr. J. G. Waller, the subject being illustrated by numerous 

 photographs exhibited on the screen by Mr. E. M, Nelson. 



The President said they could not complain that they had been 

 that evening without a definitely scientific paper, and he thought 

 they w^ere not only very fortunate in having such a paper, but 

 also in having Mr. Waller to read and explain it, and in having 

 Mr. Nelson to exhibit the slides. 



Mr. Bryce asked what magnifying power was required to 

 show these organisms properly ? When at the seaside he should 

 like to be able to know how best to see them. 



The President also asked if Mr. Waller could tell them what 

 was the nature of these organisms ? 



Mr. Waller said that Kolliker thought them to be of the 

 nature of fungi, and Dr. M. C. Cooke expressed the same opinion 

 when the subject was before the Club some years ago. 



Mr. Michael inquired whether the very beautiful and interesting- 

 pictures w^liich had been shown were supposed to represent the 

 organisms themselves, or merely the channels which had been 

 made by them ? 



Mr. Waller said the pictures showed the channels, some of 

 them done, others partly done, with the process still going on. 



Mr. Michael said it struck him as rather a remarkable pro- 

 ceeding to name a large number of species in this way, simply 

 from certain markings which they were supposed to have made. 

 He was of course aware that they were in the habit of naming 

 a thing in Geology from its cast, and they named a Phytoptus 

 from its gall ; but they had not yet got to naming a bird from 

 its nest, and in the instances before them they appeared to have 



