HIGH GRADE
Astronomical, Ifthysical and Iftl'Vf'' r*6lcal
APPARATUS
A SPECIALTY
Near Fifty-Third Street Station
Illinois Central R. R.
Express and Suburban Trains
Wm. Gaertnf, 4 Co.
TELEPHONE DREXEL 7372
Scientific Instrument flDafeers
OFFICE AND FACTORY
5347-5349 LAKE AVENUE
February JB6.t .1901*
Prof. EranK R.Osborn,
John 3. Stetson PTniversity
DeLand, Florida.
Dear Sir:-
Your valued favor of February 19th has duly been received and
*
contents have been noted. We are at present in position to make you a
special price on one email Interferometer as we have such an Instrument
complete in stock with the exception of the plates. ¥e offer you the
same at the reduced price of |80, 00 complete with mirrors silvered and
ready for use, our reguls.r price being "-90.00. We could make shipment
of the same as scan as we receive the plates which probably would not
be later than the middle of Parch. Should you be in need of a suitable
ObsKTvirig telescope ana sodium light with the proper support, lenses
etc, we can furnish you the same and quote you on the telescope $7.50
and on the sodium light with condensor and support §10, oo.
Trusting that you will find it possible to favor us with an
order for the Interferometer, we remai n
Yours very truly,
pyp A7
^
^ ysypfA
