6f Norite of Southern Ehodesia : Petrolog; 
the Selukwe Portion. By A. E. V. Zealley, A.E.C.S., F.G.S;: 
of the Geological Survey of Southern Ehodesia. (Plates I.-IV. 
and Two Text-figures.) 
Descriptions of Some New Aloes from the Transvaal. By I. B, 
Pole Evans, M.A., B.Sc, F.L.S. (With Plates V.-XV ) 
Note on Hesse's Generalization of Pascal's Theorem. By Tpiomas 
MuiE, LL.D 
On the Space-Lattice of Liquid Crystals 
LiNGEN. (With Two Text-figures.) 
Note on the Molecules of Liquid Crystals, 
LiNGEN, (With Three Text-figures.) 
By J. Steph. van dee 
By J. Steph. van der 
A Mesostoma from Bloemfontein (if. karroomise, n. sp.). By T. F. 
Breyer, B.A., Ph.D. (With Three Text-figures.) . 
Herpetomonidae found in Scatophaga hoUentota and Chamaelcon 
pumilus. By H. Bayon. ........ 
39 
45 
61 
