290 REPORTS ON THE STATE OF SCIENCE, ETC. 
Transplant Expveriments.—Report of Committee (Sir AntHur Hii, 
Chairman; Dr. W. B. Turritt, Secretary; Prof. F. W. Oxiver, Dr. 
E. J. Satispury, Prof. A. G. TANSLEY). 
A GRANT of £25 was received from the British Association on October 8, 1930. Of 
this sum, £22 4s. 3d. has been spent on labour and materials in a manner sanctioned 
by the Committee. Receipts of expenditure for this amount are enclosed herewith. 
The sum of £2 15s. 9d. has been held in reserve to pay for additional soil which is to 
be moved in during the summer or early autumn. It is requested that this be 
approved. } 
A full report of the results of the experiments obtained up to 1929 was published 
in the Journal of Ecology, xviii, 352 (1930). The Committee have recommended that 
a second report be published to include the results to the end of this year, 1931. 
Upland Bog Waters.—Report of Committee (Prof. J. H. Primstiry’ 
Chairman; Mr. A. Mains Smiru, Secretary; Dr. B. M. Grirritus’ 
Dr. KE. K. Rrpeat) appointed to carry out the Chemical Analysis o, 
Upland Bog Waters. 
In last year’s report it was possible to correlate the total bulk of algal growth in 
Miles Rough bog, Bradford, with the nitrate content of the water. The water had 
not then been analysed in the winter, when the algal growth is at times very vigorous. 
The analyses of the present year have filled this gap, having been made on November 13, 
1930, and March 2, 1931. They show that water rich in nitrate enters the bog during 
the winter months, so rich indeed, that only a small proportion of its nitrate is used 
either by cryptogamic or phanerogamic vegetation (the latter being, of course, in its 
resting period). This is shown by the analyses :— 
November 13, 1930 . . Entry 1.79 parts N.0; per 100,000 
Exit 1.62 ,, a Wd 
March 2, 1931 . : - Entry 1.95 ,, ,, m 
esd, O04 pss nes ae 
The supply of this water, rich in nitrate, in large quantity at a time when there is 
little competition from phanerogamic vegetation, is probably the main reason why the 
amount of alga is often so large in winter, showing itself, as a rule, almost independent 
of temperature fluctuations. 
Detailed analyses having now been obtained for the principal seasons of the year, 
the Committee does not seek re-appointment. 
