288 
BIBLIOGRAPHY. 
FiMonthly Microscoiilcal 
L Juiirnal, Nov. 1, 18U9. 
Bristol Microscopical Society. 
Wednesday, October 20th, 1869. — The first meeting of this Society 
for the session was held on this evening, Mr. W. J. Fedden, President, 
in the chair. There was a large attendance of members. The formal 
business having been transacted. Dr. C. T. Hudson read a paper " On 
Black-field, Opaque, and Oblique Illumination, exhibiting some of the 
latest contrivances." The effects produced by means of Eeade's Prism 
and Wenham's Truncated Lens were shown, those with the latter 
being particularly fine. The author then described a new mode of 
dark-field illumination which he had devised, by means of which large 
objects — such as entire insects — might be viewed under comparatively 
high powers. The effect produced by this method was very beautiful, 
and excited the admiration of every one present. 
Mr. F. R. Martin brought for exhibition one of Collins's new dis- 
secting microscopes. The general opinion of the meeting seemed to 
be that it was an improvement upon most of the forms of dissecting 
microscope hitherto constructed. 
A vote of thanks to Dr. Hudson terminated the proceedings. 
BIBLIOGKAPHY. 
Etudes Spectroscopiques sur le Sang ; par E. Benoit. Paris. 
Bailliere. 
Das Menschliche Haar von Dr. E. Pfaff. Leipzig. Wigand. 
Vegetable Physiology. By Edwin Lankester, M.D., F.R.S. 
Beitrage zur Anatomic und Physologie von Herrn C. Eckhard. 
Giessen. Both. 
Bryotheca Europaea. Fasciculus 22, von Dr. L. Eabenhorst. 
Dresden. Ebend. 
Geschicte und Litteratur der Lichenologie von den altesten Zeiten 
bis zum schlusse d. J. 1865, von Herrn A. Krempelshuber. Miinchen. 
Kaiser. 
Hepaticse Europaese, von L. Rabenhorst und Dr. Gottsche. Fas. 
34-47. Dresden. Ebend. 
De quelques Erreurs ou Prejuges en Physiologic vegetale ; par 
M. C. Bachy. Lille. Danel. 
Atlas zur Pathologic der Zahne von M. Heider und C. Wedl. 
Leipzig. Felix. 
Beitrage zur Kenntniss der Bryozoen, erstes Heft von Dr.H. Nitsche, 
Leipzig. Engelmann. 
La Chambre noire et le Microscope : Photo-micrometrie pratique ; 
par M. J. Girard. Paris. Savy. 
Ueber die Embryonalhiille der Hymenopteren und Lepidopteren- 
Embryonen von Herrn M. Ganin. Leipzig. Voss. 
