PROCEEDINGS OF SOCIETIES. 131 



exhibiting the latest researches into the structure and character of 

 " Bog Mosses," by Dr. Braithwaite ; also, by Mr. Carrutbers, " On 

 the History, Histological Structure, and Affinities of Nematophycus 

 Logani." 



Mr. Hogg contributed a paper " On Mycetoma : The Fungus Foot 

 Disease of India." 



Dr. Murie described "Vegetable Organisms in the Thorax of Living 

 Birds." 



Mr. Slack furnisbed observations "On the Supposed Fungus on 

 Coleus Leaves ; " and " Notes on Podisoma fuscum and P. Janiperi." 



Dr. Woodward wrote on the " Besolution of Amphipleura 

 pellucida by Objectives of Beck and Wales." 



Mr. Slack remarked on " The Structure of Eupodiscus Argus" 



Dr. Woodward furnished " Bemarks on the Besolution of Nobert's 

 Nineteenth Band, with Wales' New Immersion y^t-h." 



New Apparatus and Instruments were treated in the following 

 papers : — By Mr. Stephenson, " Stephenson's Erecting Binocular," a 

 " Silver Prism for tbe Successive Polarization of Light," and " On 

 Bicbromatic Vision." 



On an " Improved Beflex Illuminator for the Highest Powers of the 

 Microscope," by Mr. Wenham. 



" On a Micro-pantograph," by Mr. Boberts. 



" Proposal for a Standard of Comparison of the Magnifying Powers 

 of Microscopes," by Mr. Ingpen. 



" A New Form of Micro-spectroscope," by Mr. Gayer. 



" An Aerial Stage Micrometer," on an improved form of improved 

 Lens-Micrometer, and on finding Micrometrically the Focal Lengths 

 of Eye-pieces and Objectives, by Dr. Pigott. 



Dr. Murie contributed a paper " On the Classification and Ar- 

 rangement of Microscopic Objects." 



Books Purchased during the past Year. 



Annals of Natural History. 2 Vols. 



Quarterly Journal of Microscopical Science. Vol. XX. 



Cooke's Fungi Britarmici. 3 Parts. 



Allman's Gyinnoblastic Hydroids. 



Books Presented. 



Royal Society's Catalogue of Scientific Papers. Vol. VI. 



Transactions of the Linnean Society. 



The Natural System of Botany. By B. Clarke, F.L.S. 



Several pamphlets and papers, as well as the journals of other societies in 



exchange for our own, have been periodically announced in the ' Monthly 



Microscopical Journal.' 



Apparatus and Slides. 



Safety Stage for Ross's Microscope J. W. Stephenson, Esq. 



6 Injected Preparations Moritz Pillisher, Esq. 



9 Slides of Insects' Scales J. W. Wonfor, Esq. 



4 Slides of Mycetoma Jabez Hoijij, Esq. 



2 Slides of Battledore Scales . . ., Dr. Anthony. 



12 Slides of Podura Scales S. J. Mclntire, Esq. 



24 Slides of Starches Waldron Griffiths, Esq. 



98G Slides and Cabinet Mrs. Farrants. 



