1900] MICROSCOPICAL JOURNAL. 61 



so as to enable either the flat or the edg-e of the flame to be 

 used, and it should have an iron chimney holding- an ordin- 

 ary 3 in. g-lass slide, to be readily and cheaply chang-ed if 

 cracked. Such a lamp would cost about $6. A reflector is 

 worse than useless, as it confuses the lig-ht rays. — Sci-Gos. 



MICROSCOPICAL SOCIETIEfcJ. 



Quekett Club.— The 372nd meeting- on Friday, Nov. 17th. 

 Dr. J. Tatham, M. A., President, in the chair. A series of 

 photographic reproductions of the plates in Ehrenberg-'s 

 "Radiolaria from Barbados," published many years ago as 

 a supplement to the "Mikrog-eologie," and now scarce, was 

 presented by Mr. Mottram. Messrs. Bakerexhibited Leitz's 

 new travelling- or portable microscope, with folding" base 

 and removable stag-e, coarse adjustment by rack, fine ad- 

 justment on the Roberval plan. Abbe condenser and Iris. 

 Mr. A. Earland read an elaborate paper on the "Radio- 

 laria or Polyc3^stina," dealing- with their classification, mor- 

 pholog-y, physiolog-y, and distribution. 



Royal Society. — At the meeting- on Nov. IS, Dr. Hebb 

 called attention to the Volume of the Transactions of the 

 Jenner Institute of Preventive Medicine, which he thoug-ht 

 would be of great interest to those eng-ag-ed in bacteriolo- 

 gical work. Mr. C. L. Curties exhibited a new form of por- 

 table microscope by Leitz. It had a folding- foot and a re- 

 movable stag-e, to enable the instrument to be packed in a 

 small compass. The body was not made to incline,but was 

 furnished with a coarse and fine adjustment, and the stag-e 

 was fitted with a modified form of Abbe condenser with 

 Iris diaphrag-m. The President thoug-ht the instrument 

 would be useful to those requiring- a very portable one; its 

 great compactness was effected in an ing-enious manner, 

 while the working- parts were well made and finished. The 

 President read a short note descriptive of a set of three 

 simple hand-microscopes, on the Codding-ton principle,sent 

 for exhibition by Mr. Edward Swan. They were appa- 

 rently made for a medical man, and could not be very old. 



