76 



mens of unannealed glass ; sections of Crystals, sliowing uni- axial and bi-axia 

 systems, &c. 



Mr. Moginie— Microscopes. Portable Travelling Microscopes ; Portable 

 Lamps ; Revolving Stereoscope, witb 36 glass stereographs of British, Conti- 

 nental, and American scenery. 



Messrs. Murray and Heath — Students' Microscopes ; Sea-side Microscopes, &c. 



Messrs. Powell and Lealand — New Immersion f-inch Objective, showing 

 cyclosis in Vallisneria. 



Messrs Ross and Co. — Large Microscopes of the Wenharn-Ross form ; new 

 Portable Microscopes ; new large-angled ^-inch Objective ; new Diffusion- 

 film Condenser; series of Injections. 



Mr. G. J. Smith, for Mr. How — Large Binocular Microscope ; Students' and 

 popular Binocular Microscopes ; transparent Anatomical preparations, &c. 



Mr. Steward — Large Microscope, with very thin goniometer stage ; new form 

 of Botanical Microscope, for viewing portions of large objects ; series of Trans- 

 parent Injections. 



Mr. Swift— Microscopes ; new Portable Microscopes; new low-angled Objec- 

 tives; new Achromatic Condenser; Portable Lamps, &c. 



In the Museum Mr. G. H. Kirg exhibited a large Marine Aquarium, with 

 Balannphyllum verrucosa, and Clava squamata, from the]Mediterranean ; another 

 containing Hippocampi, &c. ; also a Fresh-water Aquarium, with Triton mar- 

 moratus ; cases of Stuffed Fish, &c, &c. 



Mr. Lloyd, of tbe Crystal Palace Aquarium, exhibited some fine living 

 specimens of the Neapolitan Coral, Astroides calycularis. 



Messrs. Murray and Heath exhibited their New Patent Combination Grapho- 

 scope, for transparent and opaque objects ; several Stereoscopes, &c, &c. 



Mr. Parkes, of Birmingham, lent a number of his Patent Parallel-ray Lamps 

 for the use of exhibitors. 



Mr. William R. May delivered, in the Mathematical Theatre, an interesting 

 lecture "On the Extinct Animal Life of the World," illustrated by a large 

 number of photographs and drawings shown by the oxy-hydrogen light. 



Mr. G. J. Smith, for Mr. How, displayed views, statuary, microphotographs, 

 &c, by oxy-hydrogen light, at intervals during the evening. 



April 23rd, 1875.— Dr. Matthews, F.R.M.S., President, in 



the Chair. 



The minutes of the preceding meeting were read and confirmed. 



The following additions to the Library were announced : — 



" The Monthly Microscopical Journal " ... from the Publisher. 



"The Popular Science Review" „ 



" Science Gossip" ... ,, 



" Proceedings of the Royal Society," No. 159 the Society. 



"Proceedings of the Literary and Philoso- ") , T . , 



. . r- ..»-«-». » c the bociety. 



phical Society ot Manchester ) 



" Annual Report of the Geologists' Association " the Association. 



"Transactions of the Botanical Society of) tl o . , 



i the Society. 



Edinburgh ) 



