CONTENTS. 



TBANSACTIONS OF TEE SOCIETY. 



pjL.au 

 I. — On a " Fern " Synangium from the Lower Coal Measures of Shore, 



Lancashire. By D. M. S. Watson. (Plates I., II., III.) 1 



II. — The President's Address : Life and Work of Bernard Renault. By 



Dukinfield H. Scott, F.R.S. (Plates IV., V.) 129 



III. — On an Improved Form of Metallurgical Microscope. By Walter Rosenhain, 



B.A. (Cantab.), B.C.E. (Melbourne). (Plate VI. and Figs. 21-24) .. 146 



IV. — A Simple Method of Producing Stereo-Photomicrographs. By W. P. 



Dollman. (Plate VIII.) 257 



V. — A Simple Method of Taking Stereo- Photomicrographs, and Mounting the 

 Prints without Cutting. By H. Taverner. (Plates IX., X., XI., and 

 Figs. 38, 39) 260 



VI. — Second List of Rotifera of Natal. By Hon. Thomas Kirkman, M.L.C., 



F.R.M.S. (Plate XII.) 263 



VII.— On some Oribatidse from the Sikkim Himalaya. By N. D. F. Pearce, 



Cambridge. (Plate XIII.) 269 



VIII. — New Finder for the Microscope. By Joseph M. Coon. (Figs. 40, 41) .. 274 



IX. — Contribution to our Knowledge of the Rotifera of South Africa. By Charles 



F. Rousselet, Curator and F.R.M.S. (Plates XIV., XV.) 393 



X. — On the Limits of Resolving Power for the Microscope and Telescope. By 



Edward M. Nelson 521 



XI. — On the Influence on Images of Gratings of Phase-Differences amongst 



their Spectra. By J. Rheinberg 532 



XII. — Some Rotifera of the Sikkim Himalaya. By James Murray. Communi- 

 cated by C. F. Rousselet. (Plates XVIII., XIX.) 637 



XIH. — Note on an Early Criticism of the Abbe Theory. By A. E. Conrady, 



F.R.A.S., F.R.M.S 645 



NOTES. 



Photography of Diatoms. By T. A. O'Donohoe. (Plate VII.) 156 



Dark Field Illumination. By J. W. Gordon 157 



Phagocytosis of Malarial Crescents. By J. M. Bernstein, M.B. (Lond.). (Plate 



XVI.) 415 



A Simple Wave-length Spectroscope. Made to the designs of E. M. Nelson and 



J. W. Gordon by R. and J. Beck, Ltd. (Fig. 53) 418 



Notes on the Markings of the Wing-scales of a certain Butterfly. By Dr. Alfred 



C.Stokes 648 



OBITUARY. 



Lionel Smith Beale, F.R.S., etc 277 



John Jewell Vezey, Treasurer R.M.S 279 



