xii Transactions of the South African Philosophical Society. 



Eeport of the Secretary. 



Six Ordinary, one General, and one Special Meeting were held 



during the year. 



The following papers were read : — 



H. Bolus, " Contributions to the African Flora." 



W. L. Distant, " Undescribed species and genera of South 



African Ehynchota." 



A. Walter, "Discussion of the errors of certain types of minimum 

 spirit Thermometers, &c." 



T. P. Claxton, " Note on the connection between the rainfall at 

 Durban and Mauritius." 



B. DE S. J. Van der Eiet, *' The chemical composition of Berry- 

 Wax. 



Dr. T. MuiR, *' A property of Axisymmetric Determinants, con- 

 nected with the simultaneous vanishing of the surface and volume 

 of a Tetrahedron." 



A. Brown, " Examination of the validity of an approxirpate 

 solution of a certain velocity equation." 



E. Maeloth, " Notes on the morphology and biology of Hydnora 

 Africana, Thunb." 



E. Bergh, " The Opisthobranchiata of South Africa." 



L. Jacubowa, " A new species of Planocera," 



W. B. Saxton, " On the development of the ovary-embryo sac in 

 Cassia tomentosa.'' 



J. D. F. Gilchrist, " New Forms of the Hemichordata from South 

 Africa." 



Ch. JuRiTz, " The fertility of some Colonial soils as influenced by 

 geological conditions." 



E. Marloth, " Some new South African Succulents." 



E. Broom, " On some new fossil reptiles." 



Medley J. Wood, ** Eevised List of Natal Plants." 



G. A. K. Marshall, ** A Eevision of the Coleoptera Family 

 Byrsopinae." 



The President's address. 



The wide scientific range of the Society's publications, as 

 evidenced by the scope of these papers, is once more maintained. 



During the year there have been issued parts 3 and 4 of Vol. XVI.; 

 part 2 of Vol. XIII. — which is to be completed very shortly ; and 

 part 1 of Vol. XVII., or 612 pp. with 25 plates and figures in text. 

 Part 5 of Vol. XVI. is already in the hands of the Members, but 

 properly speaking, the issue of this part belongs to the years 

 1907-1908. 



