XXli CONTENTS. 



Page 



9. On the Morphology of some Csesalpinese and the Value of Morphological 

 Criteria. By Professor Hartog 76S 



TUESDAY, SEPTEMBER 6. 



1. Discussion on the Present Aspect of the Cell Question 76S 



2. On Polar Bodies. By Professor Weismann, and by Professors Lan- 



KESTEE and Keause, and Messrs. Gardnee, Sedgwick, H. M. "Ward, 

 Caenoy, and M. Hartog 763 



3. Eeport of the Committee on the Herds of Wild Cattle in Chartley Park 

 and other Parks in Great Britain 763 



4. Further Experiments upon the Protective Value of Colour and Markings 



in Insects. By E. B. Poulton 763 



6. The Secretion of Pure Aqueous Formic Acid by Lepidopterous Larvae for 

 the purpose of defence. By E. B. Poulton 765 



6. On Icerya Furchasi, an insect injurious to Fruit Trees. By Professor 

 RiEET 767 



7. On a Luminous Oligochsete. By Professor ^Vxlen Harkee, F.L.S. ... 767 



8. On the Hessian Fly, or American Wheat-midge, Cecidomyia destinictor, 



Say, and its appearance in Britain. By Professor W. Fream, B.Sc, '^'^T 

 F.L.S., F.G.S 767 



9. Note on the Hectocotylisation of the Cephalopoda. By William E. 

 HoTLE 768 



10. On the so-called Luminous Organs of Maurolicus Pennantii (the British 



Pearl-sides). By En. E. Peince 769 



11. On the Ova of Tmnojiferis onisciformis, Eschschoh, By Ed. E. Peince ... 769 



12. On a Ciliated Organ, probably Sensory, in Toviopteris onisciformis. By 

 Ed. E. Peince 769 



13. Report of the British Marine Area Committee 769 



14. A Forgotten Species of Peripatus. By Professor F. JEFFREr Bell, M.A., 

 Sec.RM.S 769 



15. A Note on the Relations of Helminth Parasites to Grouse Disease. By 



Professor F. Jeffrey Bell, M.A., Sec.R.M.S 770 



16. The Distribution of the Nightingale in Yorkshire. By J. Lisiee 770 



17. Report of the Committee on Pro\incial Museums 770 



18. On the Muga Silkworm and Moth {Antheraa Assama) of Assam, and 



other Indian silk-producing species. By Thomas Waedle 770 



19. Note on a Point in the Structure of Fratercula Arctica. By Frank E. 

 Beddard, M.A., Prosector to the Zoological Society of London 771 



20. On the Development of the Ovum in Eudrilus. By Frank E. Beddard, 

 M.A., Prosector to the Zoological Society of London 771 



Sub- Section Botany. 



1. Alternation of Generations in Green Plants. By J. Reynolds Vaizet... 771 



2. On a Cinrious Habitat of certain Mosses. By C. P. Hobkirk, F.L.S 772' 



3. Report of the Peradeniya Committee 772* 



4. On the Constitution of Cell-walls and its relation to Absorption in Mosses. 



By J. Reynolds Vaizey 772; 



