294 PROCEEDINGS OF THE SECTIONS. 



Meeting held NOVEMBER 14, 1SS7. 



Mr. F. B. Kyngdon, in the Chair. 



Mr. Wiesener exhibited a new form of natural-history micro- 

 scope and cabinet, suitable for young people. 



Mr. Bjgg exhibited several slides of bacteria, and some biological 

 sections. 



Mr. W. H. H. Lane exhibited two specimens of trichina, some 

 in the muscle, the others dissected out. Also a slide of Phylloxera 

 Vastatrix. 



Dr. Morris exhibited the new apochromatic iV inch objective 

 of Messrs. Powell and Lealand, of London. This lens was tried 

 on the most difficult test-objects, and was considered one of the 

 finest yet made. Attention was called to a slide of Ampliipleura 

 Pellucida, mounted by Dr. Morris in realgar eighteen months ago 

 as being still in perfect preservation. 



Meeting held DECEMBER 12, 1SS7. 



Mr. F. B. Kyngdon in the Chair. 



The Chairman brought before the meeting a request from Mr. 

 Alex. Bruce, Government Inspector of Stock, asking for suggestions 

 as to the use of the microscope in judging wool. A discussion 

 followed, in which it was suggested that the microscope might be 

 easily arranged for use in a general way, and would no doubt be 

 of great service, especially if photographic enlargements were 

 taken of the specimens ; but Mr. Pedley pointed out the difficulty 

 of obtaining reliable standard measurements of thickness and of 

 the number of imbrications to the inch, by means of the micro- 

 meter, owing to the variability of individual fibres. 



Mr. MacDonnell exhibited three dozen slides, (chiefly 

 Entomological, and sections of wood) mounted by Mr. H. Sharp 

 in balsam in an ingenious manner, so as to obviate pressure and 

 distortion of the object, by pasting a rim of paper on the slide 

 and thus leaving a space of any requisite thickness for the object. 

 This process was invented by Mr. Sharp of Adelong, and the results 

 were excellent. 



Mr. Wiesener exhibited a small pocket microscope made by 

 Anderson of London, which folded up into a box 5 x 2 x 1 J inches, 

 and which possessed rackwork adjustment, stage, mirror and 

 triplet lens equal to a J inch objective. 



