86 



MAY 22nd, 1868. 

 Arthur E. Durham, Esq., President, in the Chair. 



After the minutes of the preceding meeting had been read and approved, the 

 Secretary announced the following donations :—" Science Gossip," from the 

 publisher ; "Proceedings of the Bristol Natural History Society," from the 

 Society ; " Land and Water," from the Editor ; " The Naturalists' Circular," 

 from the Editor ; an Ancient Microscope (or Engiscope), supposed to be 

 100 years old, from Mr. Wright; twenty-four Photo-Micrographs, mounted 

 in a portfolio, from the President; fifty slides, from Mr. Cooke; and 

 three slides from Mr. Martin. 



The President called attention to the photographs of microscopic objects 

 presented by him, and alluded to the circumstance that drawings very often 

 represent the interpretation of the artist rather than the object as it is, while a 

 photograph only shews what actually exists. A vote of thanks was accorded to 

 the President and the other donors, for their valuable gifts. 



The following gentlemen were proposed for membership : — Messrs. J. C. 

 Barnard, Arthur H. Henry, Jas. Martin, Fred. R. Syms, W. Lindly, jun., 

 Alfred Haward, J. W. Walker, Alfred Milledge, H. B. Briggs, Charles Dickens, 

 James Smith, F.L.S., F.R M.S., Rev. Jas. Fry, M.A., and Lieut. -Colonel 

 Jeakes. 



Thirty gentlemen, proposed at the last meeting, were balloted for, and de- 

 clared duly elected. 



Among the special objects exhibited, the following were announced:^ — "A 

 diamond-cut on glass, by polarised light, and the Pedicellaria of the Echinus, 

 by Mr. Martinelli ; Desmids, collected at the last excursion, by Mr. Hain- 

 worth ; sections of crab-sheUs, by Mr. Slade ; Crystals of Sulphate of 

 Copper, by Mr. Martin ; Crystals of Sulphate of Copper, shewing spiral 

 striae, by Mr. Hislop ; and the fructification of Todia Hymenophylloides , 

 by Mr. Lewis. 



Mr. Martin read a paper " On the Crystallisation of Sulphate of Copper at 

 different temperatures," by Mr. Hookham. See page 80. 



Mr. Slade read a paper " On the Microscopic Structure of the Shells of the 

 Crustacea," which was illustrated by coloured diagrams. 



The thanks of the members were presented to Mr. Slade for his paper. 



Dr. Braithwaite presented specimens in continuation of the series of mosses 

 found in the metropolitan district, and made a few observations on the following 

 rare species now first recorded there : — Fissidens exiHs, found by Mr. 

 Reeves, near Keston Common ; Hypnum imponeus, from Oxshot Common, 

 Esher, (Prof. Lawson), being the second recorded British locality; Buxbaumia 

 aphylla, also discovered by Prof. Lawson, near Virginia Water, and very rare 

 in England ; Hypnum illecebrum, found by himself on Barnes Common. He 

 also exhibited specimens of Wolfiia arhiza, a species of duckweed recently 

 discovered here, and the smallest of the British flowering plants. 



The President announced that the annual excursion and dinner would take 

 place on June 23rd, at Leatherhead. 



Papers by Mr. Archer and Mr. Moore were announced for the next meeting, 

 and the proceedings terminated. 



