ON THE EFFECT OF CLIMATE ON HEALTH AND DISEASE. 405 
I. The collection of data regarding climate and statistics of disease 
and death in various parts of the world. 
II. The collection of original communications dealing with the health 
of various localities by competent authors. 
ITI. The production of original researches. 
I. The collection of data to be collected under the first heading are :— 
(i) Climatological data regarding various places. 
(ii) Death statistics in communities where the total number of persons 
under investigation is known, e.g., in the Army. 
(iti) Death statistics over the general population of the district 
investigated. 
For the performance of this task a document has been drawn up 
giving the necessary instructions, and is being circulated with the forms 
' on which the returns are to be made. It is intended to send these papers 
to four classes of persons, viz. :— 
(a) Members of the Sub-Committee, for distribution to observers 
known to them. 
(6) Heads of all Government departments who are likely to be able 
to assist. 
(c) Medical officers of health. 
(d) Certain private observers. 
The Medical Department of the Navy has undertaken the distribution 
of these forms to their officers. 
II. For the purpose of collecting original papers of value on the 
health of various localities by competent authors, a list of assessors has 
been drawn up, who shall report to the Committee on the merits of the 
original communications as they come to hand. 
III. The production of original researches. .A commencement has 
been made in this direction by a preliminary research on the subject of 
perspiration. 
Professor Zuntz has interested himself actively in this portion of the 
work of the Committee. He is putting at its disposal the results which 
are being obtained by Drs. Jaffe and Schilling, who are investigating the 
conditions of metabolism in Togo, German West Africa. It seems 
probable that an effort will be made to perform researches on the same 
lines in English and other dependencies under the auspices of the Com- 
mittee. 
It is obvious that if the work of the Committee is to be of any value 
it must be done with very great care ; and therefore they have devoted 
their whole time and all the money at their disposal to the prepara- 
tion of forms which will be issued for the collection of statistics. In 
order that the collections should be comparable, it was necessary to have 
the forms drawn up with the utmost possible care, and this would have 
been practically impossible without the constant attendance and active 
co-operation of the Registrar-General, Sir Wm. C. Dunbar, Bart., C.B., 
of Dr. J. F. W. Tatham, Superintendent of Statistics, General Register 
Office ; of Dr. W. N. Shaw, F.R.S., Director of the Meteorological 
Office ; and of Lieut.-Col. R. J. S, Simpson, C.M.G., R.A.M.C., to all of 
whom the Committee are deeply indebted for the labour which they 
have undertaken. In connection with the drawing-up of the forms for 
