CONTENTS. 
PAGE 
Note on a Theorem regarding a Sum of Differential- C; oefficients of 
Principal Minors of a' Jacobian. By Thomas Muii?, LL.D.. F.R.S. 317 
Tiie Spectrum of the Buby— A New Gharacteri-tic Test. By J. 
MoiR, M.A., D.Sc, F.O.S. . . . . " . . 321 
An Upper Limit for tlie Value of a Determinant. Hv Thomas Muik. 
LL.D., F.E.S. . ; . . 323 
Remarks on some Experiments with Snake- Venom l]y Dr. Walter 
Feei. (Communicated by Dr. Theiler, CM. A., F.K.S.S.Af.) . 335 
Note on a Cmnurm of the Duikerbok. Bv Le\ms Gough, Ph.D. 
(With one fig. in text) . . . . " 343 
The Evolution of the Eiver System of Griqualand ^Vost. By Alex 
L. DU ToiT. B.A., F.G.S. (With Map, Plate xxv.) . \ . 317 
The Eainfall of South Africa. The Possibility of Predu Ucn over the 
South-west. By A. G. Howard,- M.S.A. ( CoinmuiHca ted. by L. 
Peringuey) . .^mjmmL ^^.^ 
On some Points in the Morphology and Biology of a Nd||^^^Hk 
Hmvorthia. By S. Schonland, Ph.D., F.R.S.S. Af. ^I^^^Hj. 391 
On the Absorption of Water "by the Aerial Organs of Some 8^^^H 
By S. ScHONLAND, Ph.D., F.B.S.S.Af. . . ^illlf 395 
Some New South Xirican Succulents. Part- 11. \\y K Makloth 
Ph.D., M.A., F.B.S.S.Af. (Plate xxvii.) 
Note on an Abnormal Seedling of Widdnngtonia cupressoidi 
a Brief Account of the Vascular System of the Normal sJ_ 
By H. S. Morris. Communicated by E. P. Phillips, M A. 
The Genesis of the Chemical Elements. By James Moiii D S 
M.A., F.R.S.S.Af. . . . . ' . ' . 
Eyaporation in a CuiTent of Air. (Part I.) By J. R. Sutton M \ 
Sc.D., F.R.S.S.Af., Hon. Memb. E. Met. S. . '. 117 
Notes on the Absorption of Water by Aerial Organs of Plants By 
E. MARLOTH/ Ph.D., M.A. (Plate xxviii.) . ... 429 
Statement of Silayi, with Eeference to his Life among the Bushmen. 
By W. E. Stanford 435 
On some Flowering Plants from the Neighbourhood of Port Elizabeth 
By S. SCHONLAND, Pb D., F.E.S.S.Af. (With two li-uros in the 
• • ■ • • • . . . . . .441 
Borchardt's Form of the EHminant of Two Equationts of the ?/th 
Degree. By Thomas MuiR, LL.D., F.E.S. . .... 447 
Reyised List of th-e Flora of Natal. Compiled by J. Medley Wood. 453 
On the Eelationships of the South African Fossil Reptiles to those 
of other parts of the World. By E. Broom, M.D., D.Sc, C.M.Z.S. 473 
Minutes of Proceedings 
List of Members and Fellows 
List of Publications of the Societies with which tlie Transactions are 
Exchanged 
xvn 
xxvii 
XXXI 
