FEBRUARY, 1938
INDUSTRIAL AND ENGINEERING CHEMISTRY
tilized from the cooling system, it is evident that the controlled tests have shown the fallacv of this conceDtion. The losses are general, and antifreeze and water disappear in approximately the same proportions. If such losses are replaced with water only, the antifreeze will be diluted, and freezing points will be raised. It may be that the popular misconception concerning methanol antifreeze arises from an improper appreciation of this fact. Again it is possible that by acting on that misconceDtion. redacenients have often been made with straight antiheezej Gith a resultant lowering of the boiling point and large losses* It is hoped that these data may correct this misconception and promote a more rational method of servicing by making replacements with
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solution rather than with straight water or with straight antifreeze.
Literature Cited CHEM., 23,708 (1931). (1) Aldrich and Querfeld, IND.ENGI. (2) Bur. Standards, Letter Circ. 28, Dec. 9, 1921 (revised Dec. 1. 1925). (3) Currne’and Young, IND.ENQ.CHEM.,17,1117 (1925). (4)Keyes, Ibid., 19, 1119 (1927). 15) Olsen. Brunjes, and Olsen, Ibid., 22, 1316 (1930). (6) Saunders, S. A . E. Journal, 39,496 (1936). .-I
RECEIVED August 31, 1937. Presented before the Division of Industrial and Engineering Chemistry a t the 94th Meeting of the American Chemical Society, Rochester, N. Y., September 6 to IO, 1937.
I n this painting, No. 86 in t h e Berolzheimer series of Alchemical and Historical Reproductions, this prominent Dutch artist has again turned t o the early apothecary’s “kitchen” for his inspiration. The original, painted in 1818, is in t h e Rijksmuseum in Amsterdam. While some of t h e apparatus are clearly children of the alchemical age, others show a decided improvement over the latter--for example, the boxed condenser at the left. T h e enormous scale-beam, suspended from the ceiling, is also of interest. This is t h e second reproduction in the series by this artist; the first, No. 48, appeared in our issue of December, 1934, page 1279. D. D. Berolzheimer 50 E a s t 41st St., New York, N. Y.
A list of Reproductions Nos. 1 to 60 appeared in our issue of January 1936, page 129. the list of Nos. 61 to 72 appeareh in our issue of JLnuary, 1937. page 74: snd Nos. 73 to 84 are listed on page 70 of our issue of January, 1938.
