65 
Correspondence. 
phylogenetic importance of the type of laticiferous element found in 
Evonymns and certain Hippocrateaceae was treated in greater 
detail, and a table was drawn up to show how the type of 
laticiferous element found in Euphorbiaceae, Apocynaceae, etc , on 
the one hand, and the articulated latex-vessels (Cichoriaceae, 
Papaveraceae, etc.) on the other, might both have been derived 
from the elements in question. Dr. D. H. Scott, Professor 
Farmer, Mr. W. C. Worsdell and Mr. A. G. Tansley took part 
in the ensuing discussion, which was chiefly devoted to the mode of 
development of laticiferous tissue in general. 
CORRESPONDENCE. 
To the Editor of The New Phytologist. 
Dear Sir, 
Will you allow me through the medium of your paper to 
call the attention of those who publish lengthy accounts of 
important researches, to the immense benefit they always confer 
upon students and others by collecting the chief results of their 
investigations in the form of a summary at the end of the account. 
Though intricate details and columns of figures may be of the 
greatest use to the specialist, the student reading for an exami¬ 
nation has usually neither the time nor the inclination to wade 
through them, while at the same time it is important for him to 
keep well informed about any new facts which they have brought to 
light. 
Moreover, a research is but half completed, when the 
investigator omits to draw conclusions from his results and neglects 
to consider what bearing they have upon the present knowledge of 
the subject. 
Yours faithfully, 
Christ’s College, Cambridge, A.W.B. 
8th , Feb. 1903. 
OBITUARY. 
A lfred vaughan jennings, f.l.s., f.g.s., who died 
on January 12th last, at Christiania, was the son of the Rev. 
Nathaniel Jennings of Hampstead. He was educated at St. Paul’s 
School and afterwards at the Royal College of Science, South 
Kensington, where he was a student under Huxley and was proxime 
access'll for the Forbes Medal. 
