356 
Botany at the British Association. 
quota of addresses, all bearing on problems of botanical 
research and of great interest. Dr. W. R. G. Atkins dwelt 
upon * Some Physical and Chemical Factors which affect 
Plant Distribution * ; Prof. J. H. Priestley and Dr. J. Ewing 
on ‘ Etiolation * ; Miss Margery Knight on ‘ Nuclear Changes 
in Relation to Different Methods of Reproduction in the 
Ectocarpacese ’ ; Prof. J. C. Schoute (Groningen, Holland) 
on ‘ The Foliar Origin of the Internal Stelar Structure of the 
Marattiaceae ’ ; and Miss Violet M. Grubb — ‘ Notes on the 
Reproduction of Certain Members of the Rhodophyceae,’ 
which constituted an important contribution to our knowledge 
of the red seaweeds, Porphyra and Rhodymenia. 
As regards ‘ field ’ days or excursions, there were three, 
in all of which many botanists joined, evidently with en- 
thusiasm, profit and enjoyment. The first was for the whole 
day (9th September) to Welwick on the Humber shore, for 
investigation of its very fine bit of salt marsh which exists 
there ; and then to Spurn for the sand-dune vegetation, in 
which Sea Holly and the richly orange-fruited Sea Buckthorn 
were conspicuous. The party of ninety on the return 
journey halted at Easington, where the catering capacities of 
mine host and hostess of the ‘Neptune Inn J were some- 
what taxed in providing ‘a substantial tea/ which, however, 
was satisfactorily accomplished to the letter, in two or three 
relays. 
Good weather had favoured Saturday’s excursion ; but 
nothing could have been more glorious than that of the day 
following, when the second excursion- — limited in number 
to twenty-five — took place, per char-a-banc, to Elloughton 
and Brant ingh am dales. After the plants of the chalk had 
been closely scrutinised and at least two new records made for 
E. R. Yorks., the party was regaled to Afternoon Tea at 
Brant ingham Hall, the beautiful residence of Sir John and 
Lady Sherburn, whose geniality and kindly hospitality could 
not have been greater or more opportune than upon this 
occasion. High appreciation of their kindness on behalf of 
the party was voiced by the President of Section K, Professor 
H. H. Dixon, D.Sc. 
After the clay of Holderness and the chalk of the Wolds it 
was fitting that the final excursion which took place on Tues- 
day afternoon, 12th Sept., should be to the sandy commons 
of Skipwith and Riccall. A party of forty-five, under the 
guidance of Messrs. W. N. Gheesman, J.P., Selby, and Hy. 
J. Wilkinson, York, did this very satisfactorily. Rain, 
however, came on and sent the botanists back to Selby for a 
fairly early tea, after which — again under the able guidance 
of Mr. Cheesman — they made a most instructive and interesting 
inspection of the interior of the famous Abbey. 
Naturalist 
