446 
and rejoiced in the fruits of his workman- 
ship. May be there are some who still feel that 
there is a dignity and fitness in studying the 
beautiful in science for its own sake even by 
the untrained, and take the microscope as 
more than a laboratory tool. 
The originality and workmanship of these 
old instrument-makers are still felt and long 
will be felt in the industry. European micro- 
scopes which till comparatively recently have 
been of the most primitive types, are gradually 
changing in design by adoption of many of 
the original optical and instrumental features 
of Tolles and his contemporaries, bearing wit- 
ness to the permanence and soundness of 
their work. 
Mr. Dalton in his later years made most of 
the repairs on the microscopes and chemical 
balances of the Harvard Medical School, 
Massachusetts Institute of Technology, Wel- 
lesley College, and in fact of most of the edu- 
cational institutions in and about the city, his 
work in this line occasionally taking him as 
far as Vassar. 
Through this business, he had a wide circle 
of acquaintances and will be missed by many 
who have looked with pleasure on the coming 
of the genial little gentleman who with his 
clear complexion and bright eye looked 
seventy years young, a man whose scrupulous 
cleanliness of person but exemplified his own 
blameless character, a normal man and the 
highest type of American craftsman. 
Gro. W. RoiFe 
THE SECOND INTERNATIONAL CONGRESS 
OF HNTOMOLOGY 
Tue first International Congress of Ento- 
mology, held in Brussels on August 1-6, 1910, 
was an unqualified success. It was well sup- 
ported by entomologists of all countries, both 
theoretical and practical, and also by many 
governments and institutions, which are at 
last beginning to realize the profound im- 
portance of this science in medicine and in 
agriculture. The membership was nearly 400, 
and upwards of 300 actually attended the pro- 
ceedings. The results of the deliberations are 
being published in two volumes, the first being 
SCIENCE 
[N.S. Vou. XXXV. No. 899 
devoted to the proceedings and discussions, 
the second to the numerous memoirs con- 
tributed by many authorities upon a great 
variety of subjects, including papers devoted 
to pure and to economic entomology. The 
volume of memoirs (515 pages, 27 plates) is 
now published and issued to members. The 
volume of proceedings will follow shortly. 
It was decided at the first congress that the 
second congress should be held in 1912, and 
the following meetings every three years 
from that date, so that in future the Interna- 
tional Congress of Entomology will be held 
one year before the International Congress of 
Zoology. The second congress will therefore 
be held at Oxford on August 5 to 10, 1912, 
under the presidency of Professor E. B. Poul- 
ton, D.Sc, F.R.S. A reception committee 
has been formed, consisting of: 
Dr. F. A. Dixey, F.R.S. (Chairman). 
Professor G. C. Bourne, F.R.S. (Professor of 
Zoology). 
Professor H. L. Bowman, D.Se. (Secretary to 
the Delegates of the University Museum). 
Professor E. B. Poulton, D.Se., F.R.S. (Presi- 
dent of the Second Congress). 
Geoffrey W. Smith, M.A. (Fellow of New Col- 
lege). 
Commander J. J. Walker, M.A. (Secretary of 
the Entomological Society of London). 
H. Eltringham, M.A. (Cant.), M.A. (Oxon.), 
and G. H. Grosvenor, M.A. (Secretaries). 
It is hoped that the reception committee 
will be able to arrange for members of the 
congress to have rooms in the colleges at a 
moderate price, but this privilege will be 
available for gentlemen only. In order to fa- 
cilitate the arrangements, it is requested that 
ladies and gentlemen who propose to join and 
attend the Congress send in their names as 
early as possible to the general secretary of 
the executive committee, who will be happy 
to give any further information. Ordinary 
members who pay £1 (25 franes) will receive 
all publications of the congress. Ladies and 
children accompanying members will, on pay- 
ment of 10s. (frs. 12.50) each, have all privi- 
leges of members except that of receiving the 
publications. Life members who pay a com- 
