PROCEEDINGS OF SOCIETIES. 315 
Mr. J. W. Bailey: A folding microscope of new pattern. 
Mr. Charles Baker: Lord G. 8. Osborne’s new diatom exhibitor. 
Messrs. R. and J. Beck: Pleurosigma formosum upon a black 
ground, with an achromatic eye-piece and patent achromatic con- 
denser. Surirella gemma, with ;4, immersion with central stop and 
patent condenser. New form of small microscope, with concentric 
rotating stage, &c. Large portable microscope, with apparatus and 
objectives complete. 
Mr. Badcock: Megalotrocha albo-flavicans, &c. 
Mr. John Browning: Absorption spectrum of bromine. 
Mr. Charles Collins: Young hippocampi in four stages of develop- 
ment. 
Mr. Henry Crouch: Vegetable preparations double stained by 
Dr. J. G. Hunt, of Philadelphia. 
Mr. Encch: British trap-door spider, Atypus sulzeri, and spinnerets 
of spider. 
Mr. F. Fitch: Some very beautiful natural mounts of insects. 
Mr. W. H. Gilburt: Asplemium bulbiferum, stained. 
Mr. J. W. Goodinge: Pleurosigma angulatum, with .. 
Dr. Gray: Rare diatoms from Santa Monica. 
Mr. H. Hailes: Foraminifera, Spirillina vivipera var. Magaritifera 
and Chilostomella ozizeki, &e. 
Messrs. J. How and Co.: Dolerite intrusive in granite, trachytic 
lava, and carboniferous limestone. 
Mr. Thomas Howse: Peziza bicolor alive, and a section of the seed 
of Oollomia grandiflora, showing delicate spiral threads which surround 
the testa. 
Dr. Lawson: Transverse section of human spinal cord, and Mi- 
crosporon furfurans, a fungus that attacks the hair and skin. 
Mr. W. G. Lettsom: Decomposed glass from Pompeii, mounted 
by Sir David Brewster ; and a section of a Cornish mineral which 
shows the bands due to Didymium. 
Mr. R. T. Lewis: Rheea fibre under the microscope. 
Mr. 8. J. McIntire: Eye of drone-fly. 
Dr. Millar: Mylinsia Zittelli and M. Grayii, recent representations 
of ventriculites. 
Mr. Moginie: Living organisms. 
Mr. 8. Norman: Spicula of Dendrospongia Sturii, human brain, and 
precious opal. 
Mr. Thomas Palmer: Micro-spectroscope and chemical changes 
in substances. 
Mr. W. W. Reeves: Young crinoid larve of Antedon on Bugula 
flabellata from Torbay, lent by Major Lang. 
Mr. Sigsworth: Section of hoof of the horse, showing the papille. 
Mr. H. J. Slack: Section of fossil bone from Tilgate Forest, and 
bulbs of Krupp’s silicate cotton. 
Mr. Charles Stewart: Ovary of Dorocidaris papillata and Asper- 
gillus glaucus. 
Mr. Amos Topping: Injected drum of ear of frog ; ditto lung of 
frog; and ova of ditto, in different stages of development. 
VOL. XVII. Qa 
