CONtENTS. Xvii 



Page 



4. Some Points in the Early Development of Mu5 mueculus and Mas decu- 

 mauiis: the Relation of the Yolk Sac to the Decidua and the I'lacenta. 



By Arthur Robinson, M.D GOO 



5. Observations upon the Development of the Spinal Cord in Mus musculus 

 and Mus decumanus : the Formation of the Septa and the Fissures. By 

 Arthur Robinson, M.D (J9 1 



G. On the Innervation of the Epipodial Processes of some Nudihranchiate 

 Mollusca. By Professor W. A. IIerdman, D.Sc, and J. A. Clubb 602 



7. Exhibition of a new Apparatus for opening and closing a Tow-Net by 

 Electricity. By W. E. Hoyle and L. F. Masset .". G93 



8. Exhibition of, and Remarks upon, some Young Specimens of Echidna 

 aculeata. By Professor W. N. Parkek, Ph.D Gl)3 



1). Experiments on Respiration in Tadpoles of the Common Frog(i?ana tern- 

 poraria). By Professor W. N. Parker, Ph.D G9i 



10. On the Arrangement of the Living Fishes, as based upon the Study of 



their Reproductive System. By Professor G. B. Howes, F.L.S., F.Z.S. ... 694 



11. On the Recent Visitation of Plutella Crucifera. By VV. Fream G95 



TUESDA r, A U6 UST 25. 



1. On the Artificial Production of Rhythm in Plants. By Francis Darwin 

 and Dorothea F. M. Pertz 695 



2. On Floating Leaves. By Professor Miall, F.L.S 695 



3. Notes on Internal Phloem in the Dicotyledons. By D. II. Scoit, M.A., 

 Ph.D., F.L.S ." 696 



4. On the Occurrence of Diastase in Pollen. By Professor J. R. Green, 

 M.A., B.Sc 696 



5. The Presence of a Diastatic Ferment in Green Leaves. By Professor 



S. H. Vines, M.A., F.R.S 697 



6. On the Nuclei of the Hymenomycetes. By Harold Wager 700 



7. New Form of Appendicularian 'Haus.' By Geo. Swainson, F.L.S 701 



8. On the Customary Methods of describing the Gills of Fishes. Bv 

 Professor G. B. Howes, F.L.S., F.Z.S .". 702 



9. Exhibition of a very small Parrot from the Solomou Islands. By Canon 

 Tristram, F.R.S 702 



Section E.— GEOGRAPHY. 



THURSDAY, AUGUST 20. 



Address by E. G. Ravenstein, F.R.G.S., F.S.S., President of the Section ... 703 



1. The Art of Observing. By John Coles, F.R.A.S 714 



2. Recent Geographical Progress in Great Britain. By J. Scott Keltie ... 714 



.3. Trees and Prairies. By Miller Christy 715 



1891. -a. 



