342 SECTIONAL TRANSACTIONS.— D, E. 



Saturday, August 3. 

 Joint Discussion with Sections C (q.v.) and K on Gondwanaland. 



Afternoon. 

 Visit to the Rietfontein Grass Pan. 



Sunday, August 4. 



Excursion to the Government Veterinary Research Laboratories, 

 Onderstepoort (by the kind invitation of the Director). 



Exhibits. 

 Mr. D. R. R. Burt. — Rubber Latex as an Injection Mass. 



Dr. Leonard Gill and the Staff of the South African Museum. — Exhibits 

 of South African Fauna. 



Miss D. J. Jackson. — Wing Dimorphism of Sitona Hispidula and the 

 Production of Flightless Macropterous Forms through Abnormal Develop- 

 ment of the Muscles of Flight. 



Dr. Annie Porter. — The Hookworm Problem. (In the Institute for 

 Medical Research.) 



Mr. J. H. Power. — South African Amphibia. 



IMiss Clara Weinbrenn. — Variation in the Skulls of Cercopithecus 

 pygerythrus. 



Prof. H. B. Fantham. — Some South African Animal Parasites, as illus- 

 trated by Examples from the Protozoa, Helminthes and Insecta. 



SECTION E— GEOGRAPHY. 



(For reference to the publication elsewhere of communications entered in the 

 following hst of transactions, see p. 428.) 



CAPE TOWN. 



Tuesday, July 23. 



Joint Meeting with Geophysical Department of Section A for papers 

 on Geodesy : — 



Presidential Address by Brigadier E. M. Jack, C.B., C.M.G., D.S.O., 



on National Surveys. (See p. 100.) 



Dr. VAN DER Sterr. — Progress of the Trigonometrical Survey in South 

 Africa since 1905. 



