6 South African Philosophical Society. — 
Finuay, W. H., M.A. 
Approximate Tide-Constants for Table Bay and Algoa Bay (pp. 
253-258). 
Howarp, A. G. 
The Barometer: its Reduction to Sea Level (pp. 259-265). 
MaruotH, R., Ph. D., M.A. 
The Acacias of Southern Africa (pp. 267-274). 
GuTHRIE, F., LL.B. 
On the Subjective Causes of Evolution as illustrated by the Geo- 
graphical Distribution of Plants (pp. 275-294). 
TRIMEN, Rouanp, F.R.S. 
Note on the Teeth of the Ziphioid Whale (Mesoplodon layardi, Gray) 
(pp. 295-297). 
Woops, C. Ray 
On some Photographs of Lightning Flashes (pp. 298-802). 
Photographs of Lightning Flashes taken Sept. 18th, 1888 (p. 303). — 
Tooke, W. Hammonp 
The Star Lore of the South-African Natives (pp. 804-3812). 
HAMMERSLEY-HEENAN, R. H. 
A Short Account of the Attacks of the Teredo navalis and Chelura 
terebrans upon Greenheart (Nectandra rodivét) and Sneezewood 
(Pteroxylon utile) Timbers (pp. 313-317). 
GuTHRIE, F., LL.B. 
Sea-levels in South Africa, from Barometric Observations (pp. 318-325), 
Witmer, H. C. 
The Relation of the Sand Dune Formation on the South-West Coast 
of Africa to the Local Wind Currents (pp. 826-8329). 
Vol. VI., Part 1. 1890. Price 2s. 6d. 
Prrineury, L., F.E.S., F.Z.S. 
Parasitic Bees and Wasps and their own Parasites—Presidential 
Address, 1890 (pp. xvii—xxx). 
SEELEY, H. G., F.R:S: 
Some Scientific Results of a Mission to South Africa (pp. 1-16). 
ABBE, CLEVELAND, M.A. 
The Modern Weather Bureau (pp. 17-30). 
MariotH, R., Ph.D., M.A. 
Some Adaptations of South-African Plants to the Climate (pp. 31-88). 
LEFEVRE, EK. 
Description of New Species of South-African Kumolpide (pp. 39-48). 
SCHONLAND, SELMAR, Hon. M.A. Oxon. Ph.D., F.L.S. 
Notes on Cyphia volubilis, Willd. (pp. 44-51, Plate). 
Vol. VI., Part 2. 1892. Price 2s. 6d. 
Piérinevey, L., F.Z.8., F.E.S. 
Third Contribution to the South-African Coleopterous Fauna: on 
Beetles collected in Tropical South-Western Africa by Mr. A. W. 
Eriksson (pp. 1-94). 
