This collection was built by Herbert T. Pratt following a long career at E.I. du Pont de Nemours and Company in the fibers department. The bulk of this collection consists of laboratory equipment including laboratory glassware, such as flasks, retorts, and condensers, analytical balances, and measuring devices, including hydrometers and thermometers.
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2 items
Microscope
- Circa 1890
A brass microscope with two objective lenses.
- Creator Of Work James W. Queen & Company
- Subject Microscopy, Microscopes, Scientific apparatus and instruments
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23 items
How to Use The Chemical Illustrators
- 1940
Modeling kit instruction manual, six unused cardboard sheets containing pop-out pieces representing ions, and a handwritten document found in the pages of the manual signed and dated Herbert T. Pratt, January 2, 1995.
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2 items
Hand Operated Centrifuge
- Circa 1930
Brass instrument with removable wooden handle. Holds two centrifuge tubes. Used for rapid settling of suspended solids from small quantities of liquid in analytical or clinical procedures. Manufactured by Charles Lentz…
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4 items
Bryan Chemical Illustrators Modeling Kit
- Circa 1940
Cardboard pop-out modeling kit; unused.
- Manufacturer Porter Chemical Company
- Subject Molecules--Models, Chemistry sets, Porter Chemical Company
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4 items
Cushing's Perfection Dyes Set (All Fibre Types)
- Undated
- Manufacturer W. Cushing & Company
- Subject Dyes and dyeing
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20 items
Cushing's Perfection Dyes Set
- Undated
A - Old Gold
B - Gold
C - Plum
D - Silver Gray
E - Maroon
F - Old Rose
G - American Beauty
H - Silver Gray
I - Black
J - Bright Green
K - Old Rose
L - Golden Brown
M - Olive Green
N - Mahogany
O - Olive Green
P - Olive…- Manufacturer W. Cushing & Company
- Subject Dyes and dyeing
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2 items
Putnam Fadeless Dyes Purple Packet
- Undated
- Manufacturer Monroe Chemical Company
- Subject Dyes and dyeing
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2 items
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