The Bouche d'Erquy in 1906 . 
THE BOUCHE D’ERQUY IN 1906. 
[Text-Figs. 29—31.] 
] ^ROM time to time short accounts have appeared in this Journal 
of the ecological work on halophytes upon which successive 
expeditions, organised by the Botanical Department of University 
College London, have been occupied on the Bouche d’Erquy in 
Brittany. 1 
On the occasion of the first visit (1904), the physical features 
and salt-marsh vegetation of the estuary were mapped as a 
preliminary to further study ; last year “ stations ” were located 
Fig. 29. The Field-Laboratory on the occasion of the first visit in 1904. Soil 
weighing and salt-determinations are in progress in the foreground : the 
figures behind are engaged in driving a soil-borer into the earth. 
in typical homogenous areas and their vegetation studied by means 
of the high scale charting methods devised by Dr. F. E. Clements. 
At the same time periodic determinations were made of the water- 
contents and salinity of the soils from the different stations, with a 
view to ascertaining how far the local variations of the vegetation 
are correlated with physical differences of habitat. 
> New Phytologist, Vol. III. p. 200 ; Vol. IV., p. 192. 
