Below - an accurate method of determining melting points.
Below - determination of gelatin solubility.
Below - determination of alkaloidal content.
Below - a micro-combustion furnace used to determine the carbon
and hydrogen content of any new organic compouns synthesized or
isolated in the research labs.
Below - the viscosity of fluids is determined by the
falling-ball type of viscosimeter.
Below - counting of Hemophilus pertussis bacilli - one of the
steps in the standardization of Pertussis Vaccine.
Below - rat assay for vitamin D.
Below - micro-analysis.
Below - Control lab 1938.
Below - Moisture test B.
Below - an alcoholic test being conducted in Control.
Below - Main Control Laboratory, a scene used in the film "For
All Humanity".
