iv Transactions of the Royal Society of South Africa. 
PAGE 
Crystalline Structure of Antimony and Bismuth. By A. 
Ogg. (With two Text-figs.) 75 
Map showing the Distribution of the Genus Agama. By G. A. 
Boulenger and J. H. Power. (Left over from the paper on 
the subject published in Vol. IX, Part 3) . . facing page 80 
On the Reptilian Genera EuparJceria Broom, and Mesosuchus 
Watson. By S. H. Haughton, B.A. (With Plates II and III) 81 
Note on the Product of any Determinant and its Bordered 
Derivative. By Sir Thomas Muir, LL.D 89 
Comments on Dr. Peringuey's Note on W^hales. By Arthur 
F. Bearpark. (With one Text-fig.) . . . " . .95 
Note on the Pectoral Fin of the Sole, Achirus capensis : Its 
Origin and Significance. By J. D. F. Gilchrist. (With 
Plate IV) . . . . ' 99 
On the Senonian Ammonite Fauna of Pondoland. By L. F. 
Spath, D.Sc., F.G.S. (With Plates V to IX) . . . . 113 
A Fungus — Gibetlula Haygarthii, sp. n. — on a Spider of the 
Family Lycosidae. By Paul A. van der Bijl. (With four 
Text-figs.) . . . 149 
Some South African Stereums. By Paul A. van der Bijl. 
(With nine Text-figs.) 151 
Colour and Chemical Constitution. Part XV. — A Sys- 
tematic Study of Fluorescein and Resorcin - benzeine. 
By James Moir ......... 159 
The "Account-Book " of Jan Haszing. By C. Pijper, M.D. (Leiden), 
Johannesburg, and H. Zwarenstein, M.B., Capetown . . 165 
I. On South African Paramphistomidae (Fisch.). II. Some 
Trematodes in South African Anura, and the Relationships 
and Distribution of their Hosts. By C. S. Grobbelaar, M. A., 
Lecturer and Demonstrator in the Department of Zoology, Uni- 
versity of Stellenbosch, Stellenbosch, S.A. (With nine Text-figs.) 181 
Studies in the Morphology of Selaginella pumila, Spring. Part I. 
— The Vegetative Organs of the Sporophyte. By A. V. 
Duthie. (With twenty-six Text-figs.) . . - . . 201 
Some Observations on the Effects of a Bush Fire on the Vege- 
tation of Signal Hill. By Margaret R. Michell, Lecturer 
in Botany, University of Cape Town. (With Plates X to XII 
and one Text-fig.) .213 
