BIBLIOGRAPHY. 
229 
Nature for June 6: — 
Letter from F. A. Bedwoll : Hints to Workers with the Microscope — (The 
Cotton Wool “ trap ”). 
Note on the “ Poly-Microscope.” 
June 13 : — 
Besting Spores. By E. Perceval Wright. (An abstract of Dr. Wittrock’s 
paper to the Swedish Academy of Sciences, “ On the Spore-Formation of the 
Mesocarpese, and especially of the new Genus Gonatonema.) 
June 20 : — 
Letter from E. E. Dudgeon: Examination of Small Organisms in Water. 
(The objective enclosed in a metal tube, closed at one end with thin glass.) 
June 27 : — 
Decorative colouring in Fresh-water Fleas. (Summary of the results of 
Professor Weismann’s article on the Daphnoidae in Siebold and Kolliker’s ‘ Zeitsch. 
f. wiss. Zool.’) 
July 4 : — 
Review of Herr Krukenberg’s ‘ Micrography of the Vitreous Basaltic Rocks of 
the Sandwich Islands.’ 
Note on the intended Excursion of the Birmingham Natural History and 
Microscopical Society to Arran. 
July 11 : — 
Letter from Dr. James Edmunds acknowledging Dr. Barker’s priority in the 
origination of the Immersion Paraboloid. 
July 18 
Professor Schwann’s Jubilee at Liege. 
Letter from M. M. Hartog on the Lichen Gonidia Question. 
The Male of Salpa. (A Summary of Professor Salensky’s article in ‘ Zeitsch. 
f. wiss. Zool.’) 
The Structure and Development of Sponges. (A Summary of Professor 
Keller’s article on Reniera semitubulosa in ‘ Zeitsch. f. wiss. Zool.’) 
A New Camera Lucida (of Dr. J. G. Hofmann). (With a woodcut of the non- 
microscopic form.) 
July 25 
The Hydroids of the Gulf Stream. Review of Dr. G. J. Allman’s Report on the 
Hydroida collected during the Exploration of the Gulf Stream by L. F. de 
Pourtales. 
Letter from J. Mayall, jun., on the Immersion Paraboloid. 
August 1 : — 
Note on a “ Walking Stick for Naturalists and Tourists ” from Dresden (with 
Compass, Pocket Microscope, Thermometer, Sand Glass, Chloroform or Ether bottle, 
Measure, Knife for Aquatic Plants, Spade for Botanists, Hammer for Geologists, 
&c.). 
Popular Science Review for July : — 
Volvox globator. By Alfred W. Bennett, M.A., B.Sc., F.L.S. (With a plate.) 
On the Radiolaria as an Order of the Protozoa. By Surgeon-Major G. C. 
Wallich, M.D., &c. (With a plate.) ( To be continued.') 
Microscopy. — The New Oil-Immersion Object-glass. 
Quarterly Journal of Science for July : — 
Notices of Books. — Review of “ Conferences held in connection with the special 
Loan Collection of Scientific Apparatus, 1876,” containing Dr. Royston-Pigott’s 
notice of the Microscopic Researches of Dr. Drysdale and Rev. W. H. Dallinger. 
Scientific Notes. — “ The Ross Microscope as remodelled by Mr. Wenham.” 
— The Oil-Immersion. — The Journal of the R.M.S. 
