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BIBLIOGRAPHY. 
Miscellaneous. — On the Parasitic Isopoda of the Genus Entoniscus, By M. A. 
Giard. ( From ‘ Comptes Rendus,’ Aug. 12.) 
On the Causes of tlie Buzzing of Insects. By M. J. Perez. (From ‘ Comptes 
Rendus,’ Sept. 2.) 
Reproduction of Hydra. By M. Korotnefif. (From ‘ Comptes Rendus,’ Sept. 9.) 
Grevillea for September : — 
On Anthracnose — a New [fungus] Disease of the Vine. By Dr. Maxime 
Cornu. (Translated from the ‘ Bulletin ’ of the Botanical Society of France.) 
On Chcetophorna (Gen. nov.). By M. C. Cooke. 
Hardwicke’s Science-Gossip for September: — 
The Birth of a Rotifer. By John Davis. (With 2 woodcuts.) 
Microscopy. — An Improved Wax Cell. — Quekett Microscopical Club (Thirteenth 
Annual Meeting). — A Theoretical Limit to the Apertures of Microscopical 
Objectives (Note of Professor Stokes’ paper). 
For October : — 
Microscopy. — “New Forms of Animal Life!!” — Highbury Microscopical 
Society. — Measuring -with the Microscope (Burch’s Micrometer). — The Miniature 
Microscope Lamp. 
Nature: — 
August 8 : — Letter from H. Darwin : The application of the Peaucellier 
Cell to an arrangement to make two points — one on each side of a lens — move 
in such a way as always to remain at conjugate foci. (With a woodcut.) 
Biological Note ; The Primary Germ-Layers and the Origin of the Male and 
Female Reproductive Elements (a Summary of J. Ciamician’s article (on the 
Hydroida), in ‘ Zeitsch. f. wiss. Zool.’). — The Influence of Light upon Bioplasm. 
By A. Downes, M.D., and J. P. Blunt, M.A. August 22 : — Notes on the 
discussion in the French Academy on the late Claude Bernard’s experiments 
on Alcoholic Fermentation, and on the Second Marine Excursion of the 
Birmingham Natural History and Microscopical Society. September 5: — Note 
on Objects exhibited at the Society’s Meeting on Tuesday last, and on Herr 
Muntz’s Experiments on Alcoholic Fermentation. September 12 : — The Origin 
and Distribution of Organic Colour. By W. S. Kent. September 19 : — Electric 
Discharge in Gases. II. By Drs. Warren De la Rue and H. W. Muller. (With 
a woodcut of a Compound Microscope with revolving Mirror.) 
Popular Science Eeview for October: — 
Notes on the Ophiurans, or the Sand and Brittle Stars. By Professor P. 
Martin Duncan, M.B. (Lond.), F.R.S., &c. (With a plate.) 
On the Radiolaria as an Order of the Protozoa (conclusion). By Surgeon- 
Major G. C. Wallich, M.D., &c. 
Philosophical Transactions of the Royal Society, Vol. CLXIX., 
Part 1 : — 
On the Structure and Development of Vascular Dentine. By Charles S. 
Tomes, M.A. (With 3 plates.) 
Experimental Researches on the Electric Discharge with the Chloride of Silver 
Battery. Part I. By W. De la Rue, M.A., D.C.L., F.R.S., and H. W. Muller, 
Ph.D., F.R.S. (With a woodcut of Compound Microscope with revolving 
Mirror.) 
Proceedings of the Royal Society, Vol. XXVIL, No. 187 : — 
On the Development of the Parasitic Isopoda. By J. F. Bullar, B.A., Trin. 
Coll., Cambridge. 
On the Life-History of a Minute Septic Organism : with an account of Experi- 
