CONTENTS. 



Transactions of the Society — 



PAQB 



I. — The Apparatus for differentiating the sexes in Bees and 

 Wasps. An Anatomical Investigation into the Structure 

 of the Eeceptaculum Seminis and adjacent parts. By 

 Frank E. Cheshire, F.E.M.S. (Plates I. and II.) .. ..Parti 1 



II. — On the Occurrence of Variations in the Development of 

 a Saccharomyces. By G. F. Dowdeswell, M.A., F.L.S., 

 F.E.M.S., &c ,, 16 



II. — Notes on the Life-Histories of some of the little-known 

 Tyroglyphidse. By A. D. Michael, F.L.S., F.E.M.S., 

 &c. (Plate in.) „ 19 



IV.— The President's Address. By the Eev. W. H. Dallinger, 



LL.D., F.E.S. (Plates IV.-VI.) Part 2 177 



v.— The Lantern Microscope. By Lewis Wright. (Figs. 40-42) „ 196 



VI. — On some unusual Forms of Lactic Ferment — Bacterium 



lactis. By E. L. Maddox, M.D., Hon. F.E.M.S. (Fig. 43) „ 205 



VII. — On a Cata-dioptric Immersion Illuminator. By J. Ware 



Stephenson, F.E.A.S., F.E.M.S. (Fig. 44) „ 207 



VIII.— New British Oribatidse. By A. D. Michael, F.E.M.S., 



F.L.S., F.Z.S., &c. (Plate VII.) Part 3 385 



IX. — Structure of the Diatom Shell. Siliceous Films too thin 

 to show a broken edge. By Jacob D. Cox, LL.D., 



F.E.M.S „ 398 



X. — On the Structure and Origin of Carboniferous Coal Seams. 

 By Edward Wethered, F.E.M.S., F.G.S., F.C.S. (Plates 

 VIILandlX.) „ 406 



XI. — The Pathogenic History and History under Cultivation of 

 a New Bacillus {B. ahei), the Cause of a Disease of the 

 Hive Bee hitherto known as Foul Brood. By Frank E. 

 Cheshire, F.E.M.S., F.L.S., and W. Watson Cheyne, 

 M.B., F.E.C.S. (Plates X. and XL and Fig. 134) . . . . Part 4 581 



XII. — Experiments on Feeding some Insects with the Curved 

 or " Comma " Bacillus, and also with another Bacillus 

 (5. suhtiUs ?). By E. L. Maddox, M.D., Hon. F.E.M.S. „ 602 



XIII. — On Four New Species of the Genus Floscularia, and Five 

 other New Species of Eotifera. By C. T. Hudson, LL.D., 

 F.E.M.S. (Plate XII.) „ 608 



XIV.— New British Micro-Fungi. By G. Massee, F.E.M.S. 



(Plate XIII.) Part 5 757 



