small colleges in the production of necessary reagents which they
are often financially unable to purchase.

The pamphlets are to be edited by the following committee:
Roger Adams, University of Illinois, Urbana, Illinois; J. B. Conant,
Harvard University, Cambridge, Massachusetts; H. T. Clarke, Eastman
Kodak Company, Rochester, New York; Oliver Kamm, Parke, Davis Company,
Detroit, Michigan; each to act for one year as editor-in-chief
and the other three to assist him as associate editors. A new number
of the series will appear annually, and every five years the data will
be rearranged, revised, corrected, and then published in book form.
The number of preparations to be completed yearly is not fixed.
There will be, it is certain, about twenty; and it is hoped,
as the interest is stimulated in this work, that this number may
increase considerably. The editors especially desire to solicit
contributions from other chemists, not only in this country but abroad.
Whenever a compound is thoroughly and extensively studied in
connection with some research, it is hoped that complete directions
for its preparation will be assembled and sent to the editor.
He will then have them checked and published in a subsequent number.
Directions for the preparation of substances already on the market
are needed to make this work complete and will be gladly accepted.

It will, of course, be recognized that an occasional mistake or omission
will inevitably be found in such a pamphlet as this which contains
so many references and formulae. The committee on publication will
therefore deem it a favor if they are notified when any such error
is discovered. It is hoped also that if any chemist knows a better
method for the preparation of any of the compounds considered,
or if anyone discovers any improvements in the methods, he will