CONTENTS. 



Page 



Editorial 173 



The volumetric determination of hariuni and sulphate: J. L. B. 



Smith, ]\I.Sc 174 



Historical Research in South Africa, with special reference to 



the Cape x^rchivcs : C. Graham Botha 177 



Some Parasitic Protozoa found in South Africa— II. l-I. B. 



Fantham. M.A., D.Sc 185 



Diffraction-Phenomena in iilms of hlood cells ' and in surface- 

 cultures of ^Micro-organisms : A. Pijper, ]\I.D., L.S.A igr 



The Fruit Shed in relation to the Control of the Codling -Moth : 



F. W. Pettey, B.A., Ph.D 193 



Tlie Water Supply of Kingwilliamstown : T. G. Caixk. 



?*I.Inst.M.andC.E 196 



Suicide from a legal and ethical point of view : G. T. Morue. 



Pj.A., K.C 199 



The systematic position of the h'ungus causing root-disease of sugar- 

 cane in Natal and Zululand : P. A. vax her Bijl. ;\[.A., 

 D.Sc, F.L.S 204 



Suto Astronomy : Rev. G. Bkver 206 



The possi])ilities and developiuent of the Coastal Belt of South 



Africa: T. G. Caixk. ^l.Fnst.AI.and.C.E 2ir 



Physiology of res])ir;iti(in in some Aquatic Insects: S. G. Rich, 



:\I.A., B.Sc 225 



Note on a find of " strandlooper '' pottery at Dunhrody. on the 



Sunday's River ; Rev. P. Stapleton. S.J 229 



A note on the genus Faurea. Harv. : J. J. Kotze, B.A., B.Sc, and 



E. P. Phillips, M.A., D.Sc, F.L.S 232 



Insect enemies of the Codling ^loth in South Africa and their 



relation to its control : F. W. Pettey, B.A., Ph.D 239 



A new apple tree canker : V. .A. Pi'tterill, ]\I.A 25S 



Townshend, Taylor & Snashall, Printers, Capetown. 



