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of the fauna of the limestone beds at Freak Cliff and 
Peakshill, Castleton, Derbyshire; Dr. Jowett, a pre- 
liminary note on the glacial geology of the western 
slopes of the southern Pennines. It is intended to 
arrange, if possible, two or three afternoon geological 
excursions in the neighbourhood of Manchester. On 
Saturday there will be a whole-day field excursion to 
Edale and Castleton. 
In Section D there will be the following communi- 
cations :—A discussion on chromosomes and _ heredity 
(to be opened by Prof. E. W. MacBride), and a 
series of papers on material collected in or en 
route to Australia in connection with the visit of 
the association last year. Prof. Herdman will con- 
tribute notes on the plankton collected between Liver- 
pool and Fremantle (vid the Cape), Dr. J. H. Ash- 
worth will give an account of larvz of Lingula taken 
in the Red Sea and Indian Ocean, Prof. Dendy will 
give notes on. his collecting in Australia, and Prof. 
Poulton will exhibit insects taken in Australia. Mr. 
Launcelot Harrison will give a paper on the relation 
of the phylogeny of the parasite to that of the host. 
He will advance the views that in the case of total 
obligate parasites, closely related parasites will be 
found to occur on phyletically connected hosts, and 
therefore the study of such parasites may give valuable 
indications as to the phylogeny of the host; for in- 
stance, the Mullophaga found on the New Zealand 
Apteryx indicate that this bird is a Ralline bird, 
and not a Ratite. Lieut.-Col. Lieper will give a 
demonstration upon his recent work on Bilharzia in 
Egypt, during the course of which he has been able 
to elucidate the life-history of this parasite of man. 
Other papers promised are :—Prof. F. J. Cole and 
N. B. Eales, materials for a graphic history of com- 
parative anatomy; Prof. Hartog on the movements 
of chromosomes in cell-division; Prof. Hickson on 
the distribution of sea-pens; Dr. Dixey and Dr. 
Cameron on entomological subjects; Prof. Meek on 
the distribution of fish and (another paper) on the 
future of scientific literature in relation to the war; 
Dr. J. S. Thomson on the elasmobranch fore-brain ; 
Dr. W. C. Mackenzie on the vermiform appendix in 
Monotremes and Marsupials; Dr. C. Powell White on 
the regeneration of the tail in lizards; F. W. Ash on 
secondary sex-characters. 
The arrangements for Section E are :—Papers by 
A. R. Hinks on the map on the scale of 1 : 1,000,000; 
O. J. R. Howarth on geographical considerations 
arising out of the visit to Australia in 1914; Prof. 
J. W. Gregory on relations of the central lakes of 
Westralia; Dr. R. N. Rudmose Brown on the growth 
of cities in Australia; J. McFarlane on the Burrinjuck 
dam and the Yanco irrigation area; a joint discussion 
with Section C on the classification of- land forms; 
a joint discussion with Section H on racial distribution 
in the Balkans (opened by Prof. G. Elliot Smith); 
papers by P. M. Roxby on north China and Korea; 
Dr. R. N. Rudmose Brown on Spitsbergen before the 
war; R. Curtis on the distribution of population in 
the district round Leek; T. Edwards on a rainfall 
map of Lancashire and Cheshire; Dr. F. Oswald on 
a recent visit to the Caucasus; J. Parry on lake 
moyements as observed in Lake Vyrnwy, and one on 
afforestation, being continuation of the paper read at 
the Southport meeting in 1903. 
Among the papers to be read in Section G are :— 
Prof. Asakawa and Prof. Petavel on an experimental 
investigation of the thermal efficiency of a gas engine; 
Prof. W. M. Thornton on the apparent specific heats 
in gaseous explosions; E. C. Mills on a unit gas- 
producer for steam boilers; A. A. Griffith on an in- 
vestigation of the thermal conductivity of thin-air 
films; Prof. Batho on torsion stresses in framed 
NO. 2389, VOL. 95] 
NATURE 


[AuGuST 12, 1915 
structures and thin-walled prisms; A. Robertson on 
the strength of iron and steel struts; Dr. Eccles and 
A. J. Makower on electric oscillations in coupled 
circuits; Prof. G. W. O. Howe on the capacity of 
aerials of the umbrella type; Prof. Miles Walker on 
the eddy current losses in the end-plates of large 
turbo-generators; Prof. Walker will also describe 
some experiments to determine whether there exists 
mutual induction between masses; Prof. W. Morgan 
on the automobile and war; T. H. Brigg will describe 
a new method of attaching horses to vehicles. 
In Section H the president’s address will be fol- 
lowed by a discussion (to be opened by Prof. Elliot 
Smith) on the influence of ancient Egyptian civilisa- 
tion on the world’s culture; Prof. Flinders Petrie 
will deal with Egyptian jewelry, describing in par- 
ticular the treasure of Lahun; Dr. Alan Gardiner 
will discuss the evidence pointing to a common parent 
for the Phenician, Greek, and Sabzan alphabets 
afforded by the inscriptions on strelaz, undecipherable 
as any form of Egyptian writing, discovered by Prof. 
Petrie at Sinai in 1905; Prof. Giuffrida-Ruggeri, of 
Naples, has forwarded a paper on the racial origins 
of the early Neolithic and copper-using peoples of 
Egypt, which will be presented and discussed by 
Prof. Elliot Smith, and Miss Margaret Murray, in 
a communication on royal marriage and matrilineal 
descent, and Mr. Hocart, in a paper on the quest 
for immortality, will be concerned largely with the 
Egyptian evidence. Racial distribution in the Balkans 
will form the subject of a discussion in joint session 
with Section E. Papers will be read by R. M. 
Dawkins on the Greek element in Asia Minor; and 
Dr. Rivers on analysis of ceremonial and descent in 
Ambrim. In physical anthropology Prof. Keith will 
present and discuss, at the request of the author, 
une Application anthropologie a l’Art militaire, by 
Prof. E. Manouvrier, of Paris, which deals with the 
desirability of classifying troops acording to certain 
anthropological characters; and Prof. Elliot Smith 
will exhibit the most ancient human remaims from 
India. There will be a visit to the Roman fort at 
Ribchester, the exploration of which has been carried 
on under the auspices of Manchester University. The 
main features of the fort will be described by Prof. 
Haverfield, Prof. W. B. Anderson, who has been in 
charge of the excavations, and others. 
In Section I it was hoped to have had a discussion 
on the physiological conditions necessary for the maxi- 
mum efficiency of the factory worker, but the absence, 
owing to circumstances created by the war, of so 
many who could have spoken authoritatively on the 
subject has necessitated its deletion from the pro- 
gramme. Prof. B. Moore 
lecture during the meeting, in which he will have a 
good deal to say on the physiology of factory labour. 
Prof. Bayliss is to speakk on the mode of action of 
urease; Dr. Edridge-Green on some fundamental 
facts of vision and colour vision ;.and Prof. B. Moore 
on the action of light on certain inorganic and organic 
substances. Some local contributions are kinemato- 
graph films by Dr. Graham Brown; the presence of 
copper in animal and vegetable tissues by Dr. C. 
Powell White; some laws of fat absorption, and the © 
micro-chemical differentiation of tissue fats and 
lipoids, by Drs. Lamb and Holker. Dr. C. E. Lea 
is to give a demonstration of the detection of certain 
cardiac disorders by the electrocardiograph. Other 
contributors are Dr. Sarah M. Baker, on the liquid 
pressure theory of muscular contraction; Prof. W. H. 
Thompson on arginine and creatine formation, and 
on the effects of tetanisation on the creatinine and 
creatine of the muscles of the cat; Dr. John Tait on 
thrombokinase; Drs. Tait and Pringle on the elas- 
is giving a popular 
el en ne 

