CONTENTS. Xix 



Page 

 12. Some Remarks on the Egg-Membranes of Osseous Fishes. By Robert 

 ScHAKPF, Ph.D., B.Sc 698 



TUESDAY, SEPTE3IBER 7. 



1. On Humboldtia laurifolia as a Myrinekophilous Plant. By Professor F. 0. 

 Bower 699 



2. On Positively Geotropic Shoots in Cordyline australis. By Professor F. 0. 

 Bower 699 



3. Note on Apospores in Pohjstichum angvlare, Yar. pulcherrimum. By Pro- 

 fessor F. 0. Bower 700 



4. On the Formation and Escape of the Zoospores in Saprolegnise, By Pro- 

 fessor Hartog ,., 700 



5. On the Germination of the Spores of Phjtoiihthora infestans. By Pro- 

 fessor Marshall Ward, M.A 700 



6. Two Fungous Diseases of Plants. By W. B. Gkove, B.A 700 



7. Preliminary Notes on the Autumnal Fall of Leaves. By Professor W. 

 HiLLHOusE, M.A., F.L.S 700 



8. On an Apparatus for Determining the Rate of Transpiration. By Pro- 

 fessor W. HiLLHOusE, M.A., F.L.S , 701 



9. On the Cultivation of Beggiatoa alba. By Professor W. Hillhouse, M.A.. 

 F.L.S : .'701 



10. On Heterangium Tilioides. By Professor W. 0. Williamson-, LL.D., 

 F.R.S ; [ 702 



11. The Multiplication and Vitality of certain Micro-organisms, Pathogenic 

 and otherwise. By Percy F. Frankland, Ph.D., B.Sc, F.C.S 702 



12. The Distribution of Micro-organisms in the Air of Town, Country, and 

 Buildings. By Percy F. Frankland, Ph.D., B.Sc, F.C.S 704 



13. Note on the Floral Symmetry of the Genus Oypripedium. By Dr. Max- 



well T. Masters, F.R.S 7O6 



14. On the Culture of usually aerobic Bacteria under anaerobic conditions. By 

 Professor Marcus M. Harto& and Allan P. Swan .'. 706 



15. On Cortical Fibrovascular Bundles in some species of Leajthidea and Bar- 

 ringtoniem. By Professor Marcus M. Haktog 706 



16. On the Growing Point of Phanerogams. By Percy Groom 707 



17. On the Cultivation of Fern prothallia for Laboratory purposes. By. J. 

 Morley 707 



18. Life Cycles of Organisms represented diagrammatically and comparatively. 



By D. McAlpine 7O8 



19. A Re-arrangement of the Divisions of Biology. By D. McAlpine 708 



S (IB- Section Animal Morphology. 



1. On the Theory of Sex, Heredity, and Reproduction. By Patrick Geddes 708 



2. Notes on Australian Ccelenterates. By Dr. R. Von Lenbenfeld 709 



3. On a Sponge possessing Tetragonal Symmetry, with Observations on the 

 Minute Structure of the Tetractinellidae. By Professor Sollas, LL.D.... 710 



4. The Anatomy of Necera. By Professor Haddon 71C 



6. The Nervous System of Sponges. By Dr. R. Von Lendeneeld 710 



6. The Function of Nettle-cells. By Dr. R. Von Lenbenfeld 710 



a,2 



