xcii The Transactions of the South African Philosophical Society 
ORDINARY MONTHLY MEETING. 
Wednesday, February 27, 1895. 
Mr. R. MaruotuH, Ph.D., M.A., President, in the Chair. 
The undermentioned presents were announced, and the thanks of the 
Society voted to the donors: 
Jahrbiicher der K. K. Central Anstalt fiir Meteorologie und Erdmag- 
netismus, 1892. 
Sitzungberichte der Kaiserlichen Akadmie der Wissenschaften, Band 
CII, Nos. 8-10; CIII, Nos. 1-3. 
Proceedings of U. S. National Museum, Vol. XVI, 1893. 
Revista del Museo de la Plata, Tomo V:. 
Vierteljahrsschrift der Naturforschenden Gessellschaft in Zurich. 
Bulletin de l’Académie Impériale des Sciences de St. Pétersbourg, 
Tome I., No. 1 (2 copies), I., No. 4. 
Feuille des Jeunes Naturalistes, Nos. 290, 291 and 292. 
XXIV. Jahrsbericht des Vereins fiir Erdkunde zu Dresden. 
Proceedings of Scottish Microscopical Society, Session 1893-94. 
Meteoritenkunde, von E. Cohen. 
Bulletin de la Sociétie Impériale des Naturalistes de Moscou, 1894, 
No. 2. 
Memoirs and Proceedings of Manchester Literary and Philosophical 
Society, Vol. VIII., No. 4, Vol. [X., No. 1. 
Report of British Association, 1893. 
Boletin de la Academia Nacional de Ciencias en Cordoba, Tomo XIL., 
Part 4, XIII., Part 1. 
Rev. D. P. FaurRE recalled the fact that about a year ago he had 
exhibited a yellow Disa (D. uniflora). A discussion then took place as to 
whether it was a freak or not. This year Mr. Combrinck had handed him 
a yellow Disa, which he said had been plucked from the same root as the 
first one. These yellow Disz were not so rare as one would think, for 
on the same day Mr. Combrinck had picked up two others near the 
same place. 
A discussion ensued, in the course of which Mr. Bouvs said the in- 
stability of colour in Disa was well known. Some years ago orange- 
coloured flowers from the Hottentots Hollands were exhibited. 
Mr. PERINGUEY exhibited specimens of a migratory locust which 
had lately made its appearance. He feared that this species, a close 
ally to Acridiwm peregrinum, the migratory locust, would prove still more 
injurious than Pachytilus migratorius, the species the country has 
suffered and is still suffering from. The examples exhibited were 
forwarded from Barkley West by Mr. George Paton. Mr. Péringuey 
