129 



would like to ask whether the name of Foraminifera was not 

 rather incorrect. He thought it had, no doubt, been given 

 because the early observers found that, like the Nautilus, the 

 shell was divided into separate chambers with foramina between 

 them. 



Mr. Earland said this was no doubt the case, but it had since 

 become the popular idea that the name was derived from the 

 outside perforations seen in so many of the species. 



The President said he was very sorry he had made a mistake 

 as to the workers in this particular direction ; but he had been 

 led to suppose that there were many because of the considerable 

 number of slides which he had seen exhibited at their meetings 

 and soirees. The way in which Mr. Earland had handled this 

 subject led him, however, to suppose that it would engender a 

 desire amongst the younger members of the Club to do something 

 themselves in this direction. 



The thanks of the Club were unanimously voted to Islr. Earland 

 for his paper. 



Mr. C. J. Rousselet read a paper on " Micro-cements for Fluid 

 Cells." 



Mr. Morland said he was not at all in favour of using any 

 cement merely because it had the same name as one which had 

 formerly been found serviceable, because he found that what was 

 suppHed at one time was quite different from what he got next. 

 He therefore liked to know before he used a thing what it was 

 made of. Mr. Eousselet had something in his paper about gold 

 size, but he should like to know what sort of gold size, because he 

 found that even this varied in its compositiou. 



Dr. Measures said it always seemed to him that they should 

 keep in mind the great principles involved in the use of any 

 cement — (1st) that it was wanted to secure the contents against 

 evaporation, and (2nd) to prevent the cover from moving. His 

 experience was that they must prevent by all means the escape 

 of the last trace of solvent from the cement employed, whether 

 the object was mounted in balsam or in fluid, and to ensure 

 this the best way was to cover the cement with another which 

 was dissolved in a different solvent — gum damar was a good 

 material when the solvent was benzole, and a spirit cement over 

 that would prevent the escape of the last trace of benzole and 

 be perfectly durable. He has some slides which were cemented 

 JouKN. Q. M. C, Series II., No. 43. 9 



