CONTENTS. XV 
Page 
3. Habits and Peculiarities of some South African Ticks. By Cuas. P. 
PeremANURT, 1:9, ELE. (p, PER)" Lviea fies scet ven. Leas aevel bbs dbenae 439 
4, The Buccal Apparatus of a Tick (Hemaphysalis punctata, C. and F.). 
By Grorce H. F. Nurrart, F.R.S., W. F. Coopmr, B.A., and R. D. 
MRED UES MS ES:1. naa) aeve epenctergcssaceesten th soct ie sseeosseuascssedwsitesnsaeus .. 439 
TUESDAY, AUGUST 29. 
1, *Pearl Oysters and Pearls. By Professor W. A. HerpMAN, F.R.S. ...... 441 
2. tCephalodiscus. By Dr. 8. F. Harmer, F.R.S.  ...........cccseeesceecseseees 441 
3. *Demonstration of Ankylostoma Preparations. By A. E. SHIPLey, 
a rarer en ec a daetan Manistaoundalaciiavseutuvorsuesiexsiavemncewersidseawenaamettct dies i: 441 
J OHANNESBURG. 
WEDNESDAY, AUGUST 30. 
1. *Mimicry in South African Insects. By Professor E. B. Povtron, 
FE.R.S 
2. tThe Migration of Birds in the Southern Hemisphere. By W. L. 
SIBAUIEN TEMA Nor cogs cence oar ebeasinenacen ne gush ie sieges cg catioauiedesosncwedecccsaes 442 
. On some South African Land Planarians. By Dr, H. Lysrrr Jameson 442 
4. Locust Destruction in the Transvaal, Season 1904-5. By C. B. Simpson 442 
ce 
FRIDAY, SEPTEMBER 1, 
1, Convergent Evolution, as illustrated by the Litopterna, a Group of 
Fossil Ungulata in Patagonia. By Professor W. B. Scorr ............... 443 
2. A Neuro-syncytial Theory of Development. By Dr. W. H. Gasket, 
EBs foa wd cies Sean sins Thiet MEETS XG ac Sav see ceulvcabxneearatna acdsaeniesy caaeiee sce 443 
3. On the Growing-point in the Vertebrata. By Professor J. CLELAND, 
PRE RNS rare ccs yocuv wists anyaiocu sass \iemmeneestel es «ve. 4 Woccehd SessesBancneee 444 
Section E.—GROGRAPHY. 
Carr Town. 
WEDNESDAY, AUGUST 16. 
Address by Rear-Admiral Sir W. J. L. Wuarton, K.C.B., F.R.S., President 
SP iaER ECU ON mea sce ce: Hoc ws cate. erreetcs «csecoleuacsOnst eRe aee Seca eter e hore cies 44! 
1. tA Short Description of the British Ordnance Survey, and some Advan- 
tages to be gained from a Topographical Survey of South Africa. By 
fey J 
eM GnEr ee. SOLNETON, O.Eae” odsccenpetede tees ete reer aed 459 
2. *British National Antarctic Expedition with the ‘Discovery.’ By L, C. 
BARON AGHEE [REELS NS Heat laala secon ee Ste eekaidd hoddaselein-Sndanisbacctevgs) owed Ula 459 
THURSDAY, AUGUST 1%. 
Joint Meeting with Section C. (p. 898.) ............ Wabeacintencticcenvcsucus vewenn dee ss 459 
FRIDAY, AUGUST 18. 
1, *The Unveiling of the Coast of Africa. By H. Yunn Orpwam .......0.05 459 
2. The Visit of the Scottish Antarctic Expedition to Diego Alvarez, or 
Gough Island. By R. N. RupMosE BROWN...........00.0008 dived caesens reve 459 
