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Some product selection and use procedures for lab, home and school.

Patinas for metal artists, preparing chemical solutions, creating fireplace flame colors, crystal growing, and calibrating a hygrometer — we wish to share use-instructions, explanations and ideas and such, accumulated in our files over time.

Our science advisors welcome questions concerning our product list of weather instruments, telescopes, microscopes and laboratory supplies. We'd be delighted to hear from you at 1-800-372-6726, or use our convenient Contact Us form.

PATINAS FOR METAL ARTISTS
SCIENCE EXPERIMENTS
LABORATORY PROCEDURES
BIODIESEL PROCESSING
PHOTO PROCESSES AND FORMULAS
BAROMETRIC PRESSURE & HUMIDITY