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hours without the oil becoming overheated. The great defect 

 common to all paraffin lamps was the oil getting out by creep- 

 ing ; could not some kind of oil- tight tap be invented to stop 

 this? 



Mr. Hardy said he had in a lamp which he made some time 

 ago done something to prevent both the things complained of ; 

 by using a wick much smaller or narrower than the burner, 

 and by having a longer tube to put the oil in at and made with 

 a hole in it, which allowed the air to freely get to the oil and 

 so kept it much cooler. 



Mr. Ingpen said that he had found some advantage in using 

 the small lamps which were made to burn without chimneys, 

 but the same result could be attained in the way suggested by 

 Mr. Hardy, by using a wick much smaller than the burner. 



Mr. Karop said he had a small paper model sent by Dr. 

 Gunson Thorpe, which he believed was intended to represent 

 the lorica of a Brachionus, in illustration of his paper which 

 they were unable to read at their last meeting, in consequence 

 of its being the annual meeting. 



Mr. Western said he felt at a disadvantage in saying any- 

 thing upon the subject of a paper which he had not seen, but 

 he had been in correspondence with Dr. Gunson Thorpe on 

 these matters, and could say that this model was meant for the 

 lorica of a Brachionas. The main idea was that the shell was 

 usually described as a box, but Dr. Thorpe thought it would 

 facilitate description if, instead of being considered as a box, 

 it was said to be made up of three plates, which he proposed 

 to term dorsal, ventral, and posterior. Having drawn this 

 type upon the board, Mr. Western pointed out that, whilst it 

 agreed very well with the species mentioned, there were some 

 which it was much more difficult to identify with this descrip- 

 tion. 



Mr. Western read a paper, contributed by Mr. Hood, of 

 Dundee, on a new Rotifer which he had discovered. The 

 species had not yet been named by Mr. Hood, but Mr. 

 Western hoped to be able to induce him to send them some 

 further descriptions, with drawings. 



Mr. Bryce thought the most interesting point in the descrip- 

 tion given was that which related to the duplication of the eye- 

 spot, because, so far as he knew, there was no other instance of 



