session 1907-1908. 
XXlll 
A long discussion followed, in which fourteen delegates took 
part. Eeference was made to a collection of hand-coloured 
photographs exhibited, and Mr. Eea in his reply said that the 
value of such an excellent series of photographs would be much 
enhanced if longitudinal sections were given with coloured 
figures of the spores magnified to a constant increment of, 
say, 1,000 diameters. 
Eepresentatives of various Sections of the Association then 
brought forward recommendations for local investigations, of 
which the following appeal to our Society. 
Section A (Mathematics and Physics). —Dr. W. 1ST. Shaw 
asked for assistance from observers of meteorological phenomena, 
and Mr. C. O. Bartram reported that the Hampstead Scientific 
Society had asked the London County Council for a site on the 
summit of Hampstead Hill for the establishment of a Meteoro¬ 
logical Station. 
Section C {Geology). —Dr. T. G-room recommended (1) further 
investigations on Drift; (2) the watching of new sinkings and 
borings, and the examination of cores; (3) the collecting of 
local terms applicable to geology and geography. 
Section D {Zoology). —Mr. Wilfred Mark Webb asked for 
help in connection with the distribution in the British Isles of 
Centipedes and Millipedes, on which he is preparing a Monograph 
for publication by the Eay Society. He offered to send a 
booklet and collecting-tubes to anyone who would send him 
specimens, on application to him at Odstock, Hanwell, W. 
Section H {Anthropology). —Mr. G-. L. Gromme urged the 
local Societies to organize a scheme for the photographing of 
ascertained types of local population, especially in villages 
where there were descendants of many generations who had 
never left their village and had married within it. 
Field Meeting, 16th May, 1908. 
HARROW WEALD AND ALDENHAM. 
This meeting was held in conjunction with the Barnet Natural 
History Society and under the direction of Mr. C. G. Kiddell, 
F.L.S., Honorary Secretary of that Society. 
The party assembled at “ The City,” Harrow Weald, and 
thence walked to the residence of Sir W. S. Gilbert, through 
whose grounds, which adjoin Harrow Weald Common, the 
ancient British earthwork known as Grimm’s or Graem’s Dyke 
passes. 
In these beautiful and interesting grounds a considerable 
time was spent, and remarks on the Dyke were made by 
Mr. G. E. Cruikshank. After pointing out that the present 
was only one of many earthworks with a similar name scattered 
over the country, such as, for instance, the one which crosses 
