possible. "The very old matter which forms so large a part of Storer's
Dictionary will be referred to, and in important cases fully given.
Abbreviations will be freely used and formulæ will be given instead of
the chemical names of substances, in the body of the book. This is
found to be absolutely necessary in order to bring the work into a
convenient size for use ..., The arrangement will be strictly
alphabetical. References to original papers will be given in all cases
..."

Professor Comey estimates his work will contain over
70,000 entries, and will make a volume of 1,500-1,700 pages.

The following letter from Mr. Howard L. Prince, Librarian of the
United States Patent Office, explains itself:

WASHINGTON, D.C., February 11, 1891

_Dr. H Carrington Bolton._
_University Club, New York, N.Y._:

DEAR SIR--In response to your request I take pleasure in
giving you the following information regarding the past
accomplishments and plans for the future of the Scientific
Library in the matter of technological indexing.

The work of indexing periodicals has been carried on in the
library for some years in a somewhat desultory fashion, taking
up one journal after another, the object being, apparently, more
to supply clerks with work than the pursuance of any well
defined plan. However, one important work has been substantially