VEGETATIOX OF SOUTHERN \AMIB. 



87 



Crassulace.e. 



Crassula deltoidea. L.f. 

 C. lycopodioides, L. 



Leguminos.^1. 



Lebeckia mnltiflora, E. Mey. 

 Parkinsonia africana. Sond. 



Geraniace.^. 



Pelargonium coytusifoliitm, L'Herit. 

 P. crasssicaiile, L'Herit. 

 Sarcocauloii Biirinaniii, DC. 



Zygophyllack.^. 

 A itgca capensis, Thunb. 



EUPHORBIACE.^. 



Euphorbia brackiata, E. Mey. 



E. cervicornis, Boiss. 



E. Dinteri, Berger. 



E. giimmifera, Boiss. 



E. lignosa, Marloth. 



E. namibensis, Marloth. 



E. stapelioides. Boiss. 



Umbellifer.e. 

 Pititi'diit/itfs apliyllus DC. {Dcvcrra^. 



Pl.UMBAGINACE.E. 



Statice scahva, Thunb. 



Apocynace.e. 

 Ectadiiiiu virgattnn, E. Mey. 



Asci.epiadace.t,. 



Hoodia Gordonii, Sweet. 

 Trichocaulon cactiforme, N. E. Br. 



Solanace.e. 



Lyciuui ii'ti'iiiulniui, Thunb. 



CUCURIUTACE.-E. 



Acaiithosicyos horrida, Welw. 



COMPOSIT.E. 



Dicoina tomentosa, (.'ass. 

 Eremothamnus Marlothianus, Hoftm. 

 Othonna cacalioides, L.f. 

 Plei'iiytia succidcnta. Thunl). 



CONGRESS OF RADIOLOGY AND ELECTRICITY — 



An International Congress of Radiology and Electricity is being 

 arranged for. It is proposed to hold this congress at Brussels on 

 the 6th, 7th and 8th of September next. It will comprise three 

 sections dealing with the following subjects : — Section I. : Ter- 

 minology and methods of measurement in radio-activity ; subjects 

 connected with ions, electrons and corpuscles. Section II. : 

 Fundamental theories of electricity, study of radiations (including 

 spectroscopy, chemical effects of radiations and other allied ques- 

 tions), radio-activity, atomic theory, cosmical phenomena (including 

 atmospheric electricity and atmospheric radio-activity). Section 

 III. : The effects of radiations on living organisms. 



COLOURING OF POISONS.— i\t a meeting of the (^ape 

 Chemical Society held on the 15th October it was resolved, upon 

 the motion of Prof, van der Riet, to write to the Government 

 expressing the view of the Society that steps should be taken to 

 r(^strict the sale of uncoloured arsenical preparations to the public. 

 The Medical Council of the Cape Colony, at its meeting on the 

 7th December, decided, at the instance of Dr. Darley-Hartley, 

 to recommend to the Government that arsenic and strychnine 

 supplied for farming purposes should be coloured. 



