This observation dish, the B.P.I. Watch Glass, is made with a stackable design that is ideal for Microscopy and Nematology.

The user can slide mount specimens with ease and stack the Watch Glasses into columns to eliminate the evaporation of water during observation, counting, and other purposes. This small-sized watch glass dish is made to the standards of the U.S. Bureau of Plant Industry model and was first introduced by Nathan Augustus Cobb.

Common names for this item include: Cobb Dish, BPI watch glass, Miniature Watch Glass, & Microscopy Watch Glass





Features:

• Micro / miniature BPI Watch Glass.
• Easy slide mounting of specimens.
• Stackable to eliminate evaporation.
• Frosted rim that permits labeling with a pencil.
• Deep 7mm dish bowl depth for a larger liquid capacity.
• Concaved bottom for collecting specimens in the center of the observation dish.
• High-quality Class A Type 1 borosilicate glass, Made in the United States.


Watch glasses are sold individually, discounts may be applied on orders over 100 pieces.
Contact us for more information.