CONTENTS. 



TRANSACTIONS OF THE SOCIETY. 



PAGE 



I. — On the Microscopical Structure of an Inoceramus Limestone in the Queens- 

 land Cretaceous Rocks. By Frederick Chapman, A.L.S. F.R.M.S. 

 (Plate I.) 1 



II. — On the Measurement of Grayson's Ten-band Plate. By A. A. C. Eliot 



Merlin 5 



III. — An Automatic Aerating Apparatus, suitable for Aquaria, etc. By James 



F. Gemmill, M.A. M.D. (Fig. 1) 9 



IV.— The President's Address. By Sir E. Ray Lankester 137 



V. — Note on Dewlrobrachia fallax Brook, a Rare and Remarkable Antipa- 



tharian. By Professor J. Arthur Thomson, M.A 142 



VI. — On the Measurement of the First Nine Groups of Grayson's Finest Twelve- 

 band Plate. By A. A. C. Eliot Merlin 144 



VII. — On the Visibility of the Tertiaries of Coscinodisous asteromphalus in a 



Balsam Mount. By Edward M. Nelson 147 



VIII.— Antipathariaus from the Indian Ocean. By Sophia L. M. Summers, M.A. 



B.Sc. (Natural History Department, University of Aberdeen.) (Plate V.) 273 



IX.— Critical Microscopy. By Edward M. Nelson. (Fig. 46) .. .. '.. .. 282 



X. — On the Measurement of the Diameter of the Flagella of the Cholera 



Bacillus prepared by Loffler's Method. By A. A. C. Eliot Merlin .. 290 



XL — On the Recent and Fossil Foraminifera of the Shore-sands of Selsey Bill. 

 Sussex. — V. The Cretaceous Foraminifera. By Edward Heron- Allen, 

 F.L.S, F.R.M.S., and Arthur Earland. (Plates VI.-XI.) 401 



[XII. — What did our Forefathers see in a Microscope? By Edward M. Nelson. 



(Fig. 52) 427 



XIII. — Comparative Micrometric Measurements. By Dr. Marshall D. Ewell, 



Chicago, Illinois 537 



{XIV. — Hichsonella, a New Gorgonellid Genus. By James J. Simpson, M.A., B.Sc. 



(Carnegie Fellow, University of Aberdeen). (Plate XIII.) 681 



XV. — On the Recent and Fossil Foraminifera of the Shore-sands of Selsey Bill, 

 Sussex. — VI. A Contribution towards the iEtiology of Massilina secerns 

 (d'Orbigny sp.). By Edward Heron-Allen, F.L.S., F.R.M.S., and 

 Arthur Earland, F.R.M.S 693 



XVI.— A Micrometric Difficulty. By Edward M. Nelson. (Fig. 104) .. .. 696 



X VII. — On the Resolution of New Detail in a Coscinotlixcus asteromphalus. By 



Edward M. Nelson (Fig. 105) JS 698 



