CONTENTS. 
IX 
Terricolous Ehizopoda 
T7ie Life-History of a Minute Septio Organism ; with an Account 
of Experiments made to determine its Thermal Death Point 
The Fine Adjustment of English Microscopes 
The Ornamental Colours of Daphniadoe 
Schulze’s Mode of Intercepting the Germinal flatter of the Air . . 
The Ordinary Microscope as a Polariscope for Convergent Light . . 
Quekett Microscopical Club 
Stromatopora as distinguished from Millepora 
Professor Schwann’s Jubilee 
Glyciphagus plumiger 
A New Family of Calcareous Sponges 
The Polarizing Microscope in Mineralogy 
The Radiolaria 
Oblique Light for Photo-micrography 
The Birth of a Rhizopod 
Apparent Discriminative Power in the Selection of Food by a 
Heliozoon 
On the Feeding of Dinamceba 
On the Measurement of the Dihedral Angles of Microscopic 
Crystals 
The Microscopic Sttmcture of the Stromatoporidce, and on Palaeozoic 
Fossils mineralized with Silicates, in illustration of Eozoon 
A Microscopical Study of some Huronian Clay-slates 
Preparations of Infusoria 
The Binocular with High Powers 
The Germ Theory of Disease 
Hydroida of the Gulf Stream 
A Water-lens Microscope 
The Structure and Development of Sponges 
The Eyes of Insects 
Bibliography 
No. V. (November). 
I. — On the Fossils called “ Granicones ” ; being a Contribution to the 
Histology of the Exo-skeleton in “ Reptilia.” By Professor Owen, 
C.B., F.R.S., F.R.M.S., &c. (Plates XII. and XIII.) 
II. — On some New Genera and Species of Diatomacese. By M. P. Petit. 
Translated by F. Kitton, Hon. F.R.M.S., by the kind permission of 
the Author. (Plates XIV. and XV.) 
III. — Further Remarks on a “Simple Device” for the Illumination of 
Balsam-mounted Objects for Examination with Immersion Objec- 
tives whose Balsam Angle is 90° or upwards. By J. J. Woodward, 
Surgeon and Brevet Lieut.- Col. U.S. Army. (Woodcut.) 
Notes and Memoranda 
Trembley’s Experiments on Turning a Hydra Inside Out 
On the Gold Method, and the Termination of the Nerves in the 
Unstriated Muscles 
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