Minutes of Proceedings. 
XXV 
Sections of the ovary and column at various stages of development show 
no trace of pollen tubes. The gland-like " pollen masses," which remain 
permanently embedded in the tissue of the rostellum arms, do not appear to 
develop beyond the mother cell stage. 
" A Eecord of Plants collected in Southern Ehodesia." By Feed 
Eyles. 
This record includes representatives of 160 Families, 869 G-enera, and 
2,397 Species, besides 112 Varieties. 
The flowering plants are arranged on Dr. Engler's system as set out in 
the Genera Siphonogamarum of Dr. C. Gr. de Dalla Torre and Dr. H. Harms, 
1900-1907. 
The ferns and fern allies are arranged in accordance with the system of 
Engler and Prantl, as shown in the Check List of Flowering Plants and 
Ferns of the Transvaal and Swaziland by J. Burtt-Davy and Mrs. Pott, 
1911. 
With regard to the lower cryptogams, the arrangement is that of 
Strasburger's Text Book of Botany, 1903. 
Description of : (1) a simple apparatus for finding " g " ; (2) a simple 
apparatus for standardising a given Vibrator. By J. S. v. d. Lingen. 
The discussion on this communication was postponed until the next 
meeting of the Society. 
Ordinary Meeting. 
July 21, 1915. 
The President, Dr. L, Periguey, was in the Chair. 
The Minutes of the previous Meeting were confirmed. 
Mr. J. FiGDOR, L.D.S., was nominated for memberhip. 
The following were elected to membership : 
Mr. L. Simons, B.Sc, Mr. F. Brinsley, M.Sc, Mr. C. S. Gtrobbelaar, 
M.A., Miss E. M. Doidge, D.Sc, F.L.S., and Mr. J. A. v. d. Bijl, M.A., 
F.L.S. 
The following communications were made : 
" Exhibition and Description of a New Type of Fossil Eeptile from the 
Karroo." By S. H. Haughton. 
" Note on Conus Shells illustrating Variation in Markings." By K. H. 
Barnard. 
"Discussion of: (1) Simple Apparatus for finding 'g'; (2) Simple 
Apparatus for Standardising a given Vibrator." By S. J. v. d. Lingen. 
" Note on Astronomical Photometry." By J. K. E. Halm. 
" The Electromotive Changes accompanying Activity in the Mammalian 
Ureter." By W. A. Jolly. 
