The Action of Eucomis rundulata, Ait. By J. W. G. Gunsl (With 
three Text- figures) . . . . ... . 
The Water Belations of the Pine (Pinus pinaster) and the Silver Tree 
(Leucadendron argenteum). By K. D, Aitken, M.Sc. Com- 
municated by Prof. D. Thoday. (With one Text-figure) . . 5 
Note on Axisymmetric Orthogonants. By Sir Thomas Muir, 
LL.D. } F.K.S. . . • • . , . . . . . 21 
Observations on Living Fishes brought by H.M.S. "Challenger" 
from Tropical East Africa to Cape Waters. By J. D I\ 
Gilchrist . . I $ . . K i M . * . . . . . 23 
Notes on the Development of the Ovule, Embryo Sac and Embryo of 
Hydnora africana, Thunb. By E. H. Dastur, B.Sc.Bombay, 
F.L.S. (With thirteen Text-figures) . . . . . . 27 
(1) The Permanganate Absorption -Spectrum : A Claim for Priority. 
(2) A Formula for Calculating the Uranium Spectrum. By 
James Moir . . '.. . . . . ... 33 
Colour and Chemical Constitution. Part XIII. — The Calculation Of 
the Colour of the Monocyclic Dyes. By James Moir ." . 35 
On Br aula caeca, Nitzseh, a Dipterous Parasite of the Honey Bee. 
By S. H. Skaife, M.A., M.Sc. (With eleven Text-figures) . 41 
Note on a Wire-Flint of Strandlooper Origin. By John Hewitt. 
(With Plate I) " 49 
A Note on the use of the South African Clawed Toad in the Biological 
Assay of the Digitalis Series. By J. W. C. Gunn . . . 55 
Sunspots and Earth Temperatures. By J. E. Sutton . . . 57 
Bainf all and the Pressure Gradient. By J. E. Sutton , 61 
Colour and Chemical Constitution. Part XIV/ — The Calculation 
of the Colour of the Dicyclic Dyes. By James Moir . 65 
Crystalline Structure of Antimony and Bismuth. By A. Ogg . . 75 
G. A. Boulenger and J. H. Power. — Map showing the Distribu- 
tion of the Genus Agama. (Left over from the paper on -.the 
subject published in Vol. IX, Part 3.) ; • 
NOTE TO AUTHORS. 
A first proof arid, if desired, a revise of each paper will be sent 
Author, whose address should be indicated on the MS. Expenses 
proof corrections should not exceed 10 per cent, of the printers' char 
on the setting and printing of each paper. Any, excess will be charged 
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