December 31, 1897. 
SCIENCE SUPPLEMENT.—ADVERTISEMENT. 
vii 
notes have been prepared, whenever it was 
thought that the weight of the JouURNAL should 
be used for the defense and advancement of 
scientific interests. 
SCIENCE publishes in every issue articles on 
the progress of science. Sometimes these are 
announcements of new ad- 
vances, but nearly always of a 
character to make them intel- 
ligible and interesting to those having no special 
knowledge of the subject. More frequently, 
they are reports of work, the details of which 
are published elsewhere, or reviews of the gen- 
eral advance in some department of science. 
It would be impossible to mention, within the 
limits of this advertisement, all those who have 
madesuch contributions. They include men of 
science from practically every university and in- 
stitution in America showing scientific activity. 
There is further given, weekly, a series of 
notes by the most competent authorities, re- 
viewing important scientific advances. The 
notes contributed by Professors Brinton, Davis, 
Bessey, Osborn, Howe, Frost and others are of 
unusual value to those who wish to keep in- 
formed on the progress of science. Hach week 
pages of items of scientific news are published, 
which alone would make it essential for every- 
one to read the JOURNAL who wishes to keep 
informed on current scientific interests and 
activity. 
Progress 
of Science. 
Scientific books are reviewed weekly in Sct- 
ENCE, the most recent information and authori- 
tative estimate of new publica- 
tions being given. It is probable 
that no journal in America is 
able to publish reviews of such weight as 
those contributed to ScleENCE. While the spec- 
ial journals may give information regarding 
Scientific Lit- 
erature. 
new publications in a single science, it is neces- 
sary for everyone to know something of the more 
important books in other sciences, and for this 
purpose SCIENCE is essential. Some notice is 
also given of the contents of special journals 
and other smaller contributions which might 
otherwise escape attention. 
The weekly appearance of SCIENCE, the wide 
fields it covers, and the fact that it is read by 
practically everyone interested 
in scientific matters, makes it the 
best medium for discussion and correspondence. 
This has been generally recognized and the de- 
partment usually contains contributions of great 
interest tending to promote acquaintance and 
intercourse between men of science. This de- 
partment alone is of sufficient importance to 
warrant the continuation and success of the 
JOURNAL. 
Discussion. 
The past history of ScrENCE is a sufficient 
guarantee of its future usefulness. Such a 
JOURNAL is essential to the ad- 
vance and proper recognition 
of the scientific work of each 
country, and in America, where men of science 
are scattered over a great area, with no single 
center for personal intercourse, it is peculiarly 
needful. With the growth of science and 
scientific institutions in America, SCIENCE will 
occupy an even more important position than 
at present. It will continue to set a standard 
to the popular press in its treatment of scientific 
topics, to secure that general interest in sci- 
ence so essential to its material support, to en- 
large the place of science in education and in 
life, and to demonstrate and increase the unity 
of sciences and the common interests of men of 
science. 
The fature 
of SCIENCE. 
