Knight Optical, the leading supplier of on-spec, metrology-tested optics, is proud to announce that it now offers a new range of high-spec components, Calomel Infrared (IR) Polarisers. In this ...

THE present shortage of potassium makes it necessary that chemists should take every care that there is no undue waste of this material, and it seems to us that with the large number of workers using ...

Although the name is derived from the Greek “calos” meaning “good" and “melas” for “black,” "calomel" -- the name given to mercurous chloride, the most common medicine of the era -- is neither good ...

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MOSLEY has recently suggested 1 that, by liberally dressing onion seed with calomel, control may be obtained not only of onion fly and onion white rot but, possibly, also of the onion eelworm, ...