(i) 
MINUTES OF PROCEEDINGS 
OF THE 
ROYAL SOCIETY OF SOUTH AFRICA. 
Eeport of the Hon. Gteneral Secretary for the Year Ending 
December 31, 1916. 
Seven Ordinary Meetings, the Annual and the Anniversary Meetings, 
were held during the year, and the following papers were read : 
" Note on Pfaffians Connected with the Difference-product," by Sir 
Thomas Muir. 
" Note on the so-called Vahlen Eelations between the Minors of a Matrix," 
by Sir Thomas Muir. 
" On the Development of the Perturbative Function in the Theory of 
Planetary Motion," by R. T. A. Innes. 
" A Contribution to our Knowledge of the National Grame of Skill of 
Africa," by P. A. Waoner. 
" A Survey of the Scorpion Fauna of South Africa," by John Hewitt. 
" Note on a Petiole and Portion of the Lamina of Cotyledon orhiculata 
Functioning as a Stem," by S. Schonland. 
" Oecological Notes on the District of Manubie, Transkei," by W. T. 
Saxton. 
" Note on the Radiations emitted by Degenerating Tissues and Note 
on the lonisation produced by Degenerating Nerve-Muscle Preparations," 
by J. Steph. van der Linoen. 
" Note on Protective Resemblance in Post-Larval Stages of some South 
African Fishes," by J. D. F. GtIlchrist. 
" On the Morphology of the Female Flower of Grnetum," by H. H. W. 
Pearson. 
" Heart Rot of Ptaeroxylon utile (SneezeWood) caused by Fomes rimosus 
(Berk)," by Paul A. van der Bijl. 
