BIBLIOGRAPHY. 
157 
Peet’s article in the April number on “ Polarization by Refraction.” — Mr. H. F. 
Atwood on Volvox globator, and Mr. G. E. Blackham on the Scale and Vernier 
Improvement in Stands. 
Transactions of Societies, as in April number. 
The Journal de Micrographie for April : — 
The Lymphatic Hearts (continuation'). By Professor Ranvier. (With 
I woodcut.) 
On Foreign Microscopes (the American Microscopes) (continuation). By 
Dr. J. Pelletan. (With 2 woodcuts.) 
Observations on the Termination of the Motor Nerves of the Striated Muscles 
of the Torpedoes and the Rays (continuation). By Professor Ciaccio. 
New Researches on the Intimate Structure of the Retina in Birds. By Dr. A. 
Tafani. 
Observations on the Rotatoria and the Infusoria. By Dr. J. Pelletan. 
The Siliceous Fossil Beds of Auvergne employed in the Preparation of 
Dynamite. By Dr. Leuduger Fortmorel and M. Paul Petit. (With 1 woodcut.) 
On the Formation of the Septa in the Stylospores of the HendersonisS and the 
Pestalozzise. By L. Crie'. 
Diatoms of the “He de Re” gathered on the Chondrus crispus (Lyngby). 
By P. Petit. 
On a Photographic Microscope (continuation). By Professor C. Fayel. 
Mr. Tolies’ -/j-, Objective. By Dr. J. Pelletan. 
Review of the third edition of Dr. Van Heurck’s ‘The Mieroscope; its 
Management and its Application to Vegetable Anatomy and the Diatoms.’ 
For May : — 
The Lymphatic Hearts (continuation). By Professor Ranvier. 
Observations on the Termination of the Motor Nerves of the Striated Muscles 
of the Torpedoes and the Rays (contimiation). By Professor Ciaccio. 
New Researches on the intimate Structure of the Retina in Birds (continua- 
tion), By Dr. A. Tafani. 
On Foreign Microscopes (the American Microscopes) (continuation). By Dr. 
J. Pelletan. 
The Vernier applied to the Tube or Body of the Microscope. By L. M. 
Bauwens. (With 1 plate.) 
Reviews of Dr. Van Heurck’s translation of Professor Hamilton Smith’s 
Synopsis of the Families and Genera of the Diatoms. 
The Medullated Nerve Fibres. By Dr. J. Pelletan. (With 6 woodcuts.) 
Zentmayer’s Double-stained Microscopical Preparations at the Paris Exhibition. 
By Dr. J. Pelletan. 
The Objectives of Mr. Tolies. By Dr. J. Pelletan. 
The Ann ALES des Sciences Naturelles (Botanique), Vol. V., 
Nos. 1 to 3 (issued in March) : — 
Researches on the Comparative Anatomy and Development of the Tissue of 
the Stem in the Monocotyledons. By Dr. A. Guillaud. (With 6 plates.) 
The Bulletin de la Sooiete Belge de Microscopie, Vol. IV., 
Nos. 4, 5, 6, and 7 (issued January to April) : — 
On Liquids in the Cavities of Minerals, with a Description of Vogelsang and 
Geissler’s Apparatus for Determining their Physical and Chemical Properties. 
By M. Renard. (With 1 woodcut.) 
The Vernier applied to the Tube or Body of the Microscope. By L. M. 
Bauwens. (With 1 plate.) 
The Histological Preparations of Dr. Kaiser of Berlin. By Dr. K. Ledeganck. 
The Diatoms of the Alps. By Professor Brun. 
On the Employment of the Ordinary Microscope as a Polariscope for con- 
verging Light, and on a New Microscope for the use of Mineralogists. By 
Professor A. de Lasaulx. 
Observations on some Slides of the Remains of Fossil Pliocene Fishes from 
Pisa. By R. Lawley. 
The New a Oil of Cedar Immersion Objective of Carl Zeiss. By Dr. Henri 
Van Heurck. 
Reviews of Books and Journals, with extracts ; and the Proceedings of the 
Meetings of January, February, IMarch, and April. 
