CONTENTS 
PAGE 
THE GEOLOGICAL HISTORY OF THE RIFT VALLEY. Prof. 
J. W. Gregory, D.Sc., F.R.S 429 
DISCURSIVE NOTES ON THE FOSSORIAL HYMENOPTERA. 
G. D. Hale Carpenter, M.B.E., D.M., F.E.S., F.Z.S. . . 440 
DISEASES OF STOCK IN LUMBWA DISTRICT. C. M. Dobbs. 461 
NOTES ON THE PREVALENCE OF INTESTINAL PARASITES 
IN EAST AFRICA. J. 0. Shircore, M.B., M.R.C.P.(Edin.). 466 
NESTING OF UGANDA BIRDS. C. F. Belcher . . .473 
LUMBWA CAVES. C. W. Hobley, C.M.G 478 
THE SOUTH-EAST FACE OF MOUNT KENYA. Captain G. 
St. J. Orde Brown, R.A. 487 
NOTES 
LAMU CHINA AND POTTERY. Capt. Cary . . . .492 
A CURIOUS NOISE TO BE HEARD ON THE SHORE. G. D. 
Hale Carpenter, D.M. ........ 494 
DEATH OF THE LUNG FISH. A. Blayney Perciyal . . 495 
A SNAKE OF EXTREME RARITY FROM PORTUGUESE EAST 
AFRICA. G. D. Hale Carpenter, D.M 496 
CURIOUS INCIDENT AT KISMAYU. Fairfax Francklin . 497 
THE ‘ GADETT ’ OR BRAIN-EATER. Cara Buxton, F.R.G.S. 498 
ILLUSTRATIONS 
PHOTOS ILLUSTRATING PAPER ON STRUCTURE OF RIFT 
VALLEY To face 430, 436, 438, 439 
COLOURED PLATE AND PHOTOS ILLUSTRATING PAPER 
ON FOSSORIAL HYMENOPTERA To Frontispiece and to face 440, 
442, 444, 456 
ENGRAVINGS ILLUSTRATING PAPER ON LUMBWA CAVES 481 
PHOTO ILLUSTRATING NOTE ON LAMU CHINA AND 
POTTERY To face 494 
ENGRAVING ILLUSTRATING NOTE ON ‘ GADETT * OR BRAIN- 
EATER 498 
