MICROSCOPY. 
[The Publication Committee of the Journal has decided on resuming the issue 
of the Microscopic Bibliography, which was dropped on the lamented death of 
Mr. John Mayall, jun. It is intended in future to give at least the title of 
every work or paper (commencing from January 1st, 1899) coming under the 
head of Microscopy A or of Technique 3 (Microtomes) ; and we shall be much 
obliged to any of our Fellows who will call our attention to any such papers or 
articles published in Journals which are likely to escape our notice. — Editor.] 
A. Instruments, Accessories, &c.* 
CD Stands. 
The Compass Microscope. — In an old German work on the Micro- 
scope by Martin Frobenius Ledermiiller,f occurs a series of plates illus- 
trating Russwurm’s “ Universal Microscope,” which appears to have been 
Fig. 125. 
a combination of compass and tube Microscopes in an unusual number 
of forms. Its claim to “ universality ” seems to have lain in its adapta- 
bility to viewing opaque, liquid, transparent, and anatomical objects. 
Figs, 125-129, reproductions of the original plates, show the in- 
* This subdivision contains (1) Stands; (2) Eye-pieces and Objectives; (3) I Hu- 
miliating and other Apparatus; (4) Photomicrography; (5) Microscopical Optics 
and Manipulation ; (6) Miscellaneous. 
+ ‘ Mikroskopische Gemiiths- und Augen-Ergotzung,’ Niirnberg, 1763; Samm- 
lung ii. pp. 21-9 (pis. xi-xv.). 
