Per pair, duty paid. Net $5.00

15864. Viscosity Pipette, Dudley's. As adopted by the Pennsylvania Rail-
road. Delivers 100 cc. of distilled water in 35 seconds at a temper-
ature of 100° F. Each $2.00

15866. Viscosimeter, Improved Form. Specially devised to meet all de-
mands as a measure of viscosity, without the many objections that
occur against other forms. It is intended to show the viscosity of
any oil by noticing the number of seconds required for 50 cc. to
run through the open faucet. Each instrument is thoroughly
tested and standardized. Each $60.00

15868. Viscosimeter, Scott's. For determining the viscosity of oils, etc., by
noting the number of seconds required for 50 cc. to run through.
This is a reliable instrument and compares very favorably witli



New York, Boston, Chicago, U. S. A., Frankfurt a/M., Germany.
309



IS904. 15906



DRAWING FENGJJt.,



15886



15870.
See Milk Testing Apparatus.
15872.
15874-
15876.
15878.
15880.
15882.
15884.
15886.
15888.
15890.
15892.
15894.
15896.
15898.
15900.
15902.
Per quire


$0.30


Per quire


$0.30


Per quire


$0.30


Per quire


$0.30



$0.35



those of much higher price. Complete, with standard thermome-
ter and 50 cc. graduate. Each $10.00
Oil Testing Apparatus. Stop Watch. For use with above instru-
ments. Each $10.00
Pails, Agateware. See Buckets.
Palladium Tubes. See Gas Apparatus.
Pans, Scale. See Balance Pans.
Paper, Adam's, for Absorbing Milk.
Paper, Bibulous. See Filter Paper.
Paper, Filter. See Filter Paper.
Paper, Glazed. White.
Paper, Glazed. Black.
Paper, Glazed. Blue.
Paper, Glazed. Yellow.
Paper, Lens. See Lens Paper.
Paper, Litmus. See Test Paper.
Paper, Parchment. For dialysers, etc.
Per five hundred grams
Paper, Tracing. Very thin, transparent, and tough. Size 50 x 68 cm.
Per quire $1.25
Paraffin Baths. See Water Baths.
Parting Flasks. See Flasks, Assay.
Pasteur Flasks. See Flasks, Culture.
