Xxvm CONTENTS. 



3I0NDAY, SEPTEMBER 7. 



Page 



Joint Discussion with Section D on the Determination of Sex (p. 738) 909 



1. The Optical Behaviour of the Epidermal CeUs of Leaves. By Haeold 



Wagee, F.R.S 9o:> 



2. The Contractile Roots of the Aroid Sauromatum guttatum. By 



Mrs. D. H. Scott, F.L.S 910 



3. Evaporation in relation to the Stratification of Marsh Vegetation. 



By Professor R. H. Yapp, M.A 911 



4. *Report on the Registration of Botanical Photographs 911 



5. Report on the Structure of Fossil Plants (p. 493) 911 



6. Report on Studies of Marsh Vegetation (p. 492) 911 



7. Interim Report on the Sequence of Plant Remains in the Peat Deposits 



of Teesdale, &c. (p. 493) 911 



8. Second Interim Report on Research on South African Cycads and 



on Welwitschia (p. 494) 911 



9. *A Plant Animal. By Pi-ofessor F. W. Keeble 911 



' TUESDAY, SEPTEMBER 8. 



1. The Origin of Dicotyledons. By W. C. Worsdell 911 



2. A Note on the Morphology of Endosperm. By Professor H. H. VV. 



Pearson, Sc.D 914 



3. The Primary Wood of Lepidodendron and Stigmaria. By Professor 



F. E. Weiss, D.Sc 914 



4. On Bensonites fusiformis, sp. vov., a Fossil associated with Stauropteris 



burntislandica, P. Bertrand, and on the Sporangia of the latter. 

 By Mrs. D. H. Scott, F.L.S 915 



5. The Structure of Sigillaria scutellata, Brongn. By E. A. Newell 



Arber, M.A., and Hugh H. Thomas, B.A 915 



6. Notes on the Life History of Hcematococcus lacustria By M. Wilson, 



B.Sc 916 



Section L.— EDUCATIONAL SCIENCE. 

 THURSDAY, SEPTEMBER 3. 



Address by Professor L. C. Miall, D.Sc, F.R.S. , President of the Section. . 917 



1. *The Outlook: A Grand Experiment in Education. By Professor 



H. E. Armstrong, F.R.S 927 



2. Education under a Local Authority. By R. Blair, M.A., B.Sc 927 



3. Special Schools for the Physically Defective and the Mentally Deficient. 



By Mrs. E. M. Burqwin 929 



