274 Notes and Comments. 
recent years considerable discussion on points of nomenclature 
has been in progress between British and Foreign plant geo- 
graphers. This culminated at the International Botanical ~ 
Congress held in Brussels last year. The views of British 
ecologists were set forth in a pamphlet drawn up by the British 
Vegetation Committee, and also in a special pamphlet on the 
question of Plant Formations by Dr. Moss. These had great 
influence on the views of Continental ecologists, and it was 
thought desirable to bring together representative men to 
consider on the spot the various views regarding the chief 
plant associations. There can be no doubt that such an 
opportunity for exchange of ideas will be invaluable in helping 
to systematise ecological studies in general. 
DISTINGUISHED FOREIGN VISITORS. 
Invitations were consequently sent to a number of leading 
botanists, and among those who propose to attend are Prof. 
and Mrs. Clements (Minneapolis), Prof. and Mrs. Cowles 
(Chicago), Prof. Drude (Dresden), Prof. Flahault (Montpellier), 
Dr. Graebner (Berlin), Dr. Lindman (Stockholm), Prof. Massart 
(Brussels), Prof. Warming and Dr. Ostenfeld (Copenhagen), 
Prof. Schr6éter and Dr. Riibel (Zurich) and Dr. Weber (Bremen). 
These will be joined by the members of the British Vegetation 
Committee and others who have made special ecological studies 
in this country, and Dr. G. C. Druce, of Oxford, will also be 
present. It is a long time since so many men eminent in 
Plant Geography met together in this country, and no pains 
have been spared to render their visit both interesting and 
profitable. A business programme of eight pages has been 
issued, giving detailed information most likely to be of value 
to the visitors, and also a skeleton programme of the excursion, 
which commences on August Ist and ends August 30th. A 
map is included on which the route to be taken is clearly 
indicated, together with the dates on which the various places 
will be visited. 
ROUTES. 
The members assemble in Cambridge on August Ist and 
2nd, where they will be entertained by members of the Univer- 
sity, while the four following days will be spent on the Yar- 
mouth Broads. On the 7th, the party will proceed to Derby- 
shire, visiting Monsal Dale and the Peak Moors, and then on to 
Manchester. On the gth, the cotton grass moors of the Stan- 
edge, and the various types of woodland about Huddersfield 
will be examined. From thence to Southport for the sand 
dunes, and on to Lancaster for the lowland peat moors. August 
11th and 12th will be spent in the neighbourhood of Carnforth, 
Grange, Silverdale and Whitborrow, and on the 13th an ascent 
of Cross Fell will be made. Edinburgh will be reached on the 
Naturalist, 
