818 CURRENT TOpiCS. [1. F. I. Prevent Sunburn by Taking Iron.--At the recent San Francisco Meeting of the American Chemical Society L. EDER, Santa Barbara Clinic, reported that the routine administration of iron to the so- called "normal" infants and children resulted in greater tolerance to the sun and an absence of the frequent burning and blistering of the skin. Cases known to be sun-sensitive exhibited an increased tolerance to the ultra-violet rays after being placed on iron therapy. Improvement in general well-being, appetite and appearance also resulted. The author is of the opinion that a hemoglobin test is not a sure way of determining the iron reserve of the body since the former maintains itself as long as there is any reserve upon which it may draw. When such reserve is depleted secondary anemia will occur. C. The Vitamin Content of Chow Mein.--During a series of studies on the nutritional value of some oriental foods, L. S. WEATHERBY AND S. MURRAY undertook to determine the vitamin Content of chow mein by the usual method of feeding white rats. Vitamins A, B and D were found present in quantities sufficient to correct those pathological conditions caused by their respective deficiencies. A test to show the complete sufficiency of chow mein was conducted by feeding five rats a diet of that alone from weaning time until the animals were six months old. The rats showed no signs of any deficiency through the entire period. This showed not only the adequacy of the vitamin content, but also of the mineral and protein content of chow mein. C. Seven-Eighths Less Smoke.--JAMES F. POLLARDrelates in Power, Vol. 79, No. IO, how the Lake Union plant of the Seattle Gas Com- pany attacked the smoke problem by means of individual smoke alarm units on each of the boilers operated at the plant, as well as in the stack itself. The boiler plant consists of nine 1,5oo sq. ft. h. r. t. boilers, eight of which are in double settings and one, single. They are mounted in two banks, one of five and one of four. Three boilers are arranged for oil firing. The balance are equipped with stokers for solid fuel, and tar is also used. By mounting a smoke alarm immediately above each boiler, it becomes possible to detect the exact source of the smoke at once, before a long column of smoke has reached the stack. A novel method was employed to protect the units from heat. The smoke alarm unit installed in the stack has a light source at one side of the stack and the photo-electronic cell on the opposite side. Both mountings have a small jet of

The vitamin content of chow mein

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818 CURRENT TOpiCS. [1. F. I.

P revent Sunburn by Taking I ron . - -A t the recent San Francisco Meeting of the American Chemical Society L. EDER, Santa Barbara Clinic, reported tha t the routine administration of iron to the so- called " n o r m a l " infants and children resulted in greater tolerance to the sun and an absence of the frequent burning and blistering of the skin. Cases known to be sun-sensitive exhibited an increased tolerance to the ultra-violet rays after being placed on iron therapy. Improvement in general well-being, appet i te and appearance also resulted.

The author is of the opinion tha t a hemoglobin test is not a sure way of determining the iron reserve of the body since the former maintains itself as long as there is any reserve upon which it may draw. When such reserve is depleted secondary anemia will occur.

The Vitamin Content of Chow Mein . - -Dur ing a series of studies on the nutrit ional value of some oriental foods, L. S. WEATHERBY AND S. MURRAY under took to determine the vi tamin Content of chow mein by the usual method of feeding white rats. Vitamins A, B and D were found present in quanti t ies sufficient to correct those pathological conditions caused by their respective deficiencies. A test to show the complete sufficiency of chow mein was conducted by feeding five rats a diet of tha t alone from weaning t ime until the animals were six months old. The rats showed no signs of any deficiency through the entire period. This showed not only the adequacy of the vi tamin content , but also of the mineral and protein content of chow mein.

Seven-Eighths Less Smoke.--JAMES F. POLLARD relates in Power, Vol. 79, No. IO, how the Lake Union plant of the Seattle Gas Com- pany at tacked the smoke problem by means of individual smoke alarm units on each of the boilers operated at the plant, as well as in the stack itself. The boiler plant consists of nine 1,5oo sq. ft. h. r. t. boilers, eight of which are in double settings and one, single. Th ey are mounted in two banks, one of five and one of four. Three boilers are arranged for oil firing. The balance are equipped with stokers for solid fuel, and tar is also used. By mounting a smoke alarm immediately above each boiler, it becomes possible to detect the exact source of the smoke at once, before a long column of smoke has reached the stack. A novel method was employed to protect the units from heat. The smoke alarm unit installed in the stack has a light source at one side of the stack and the photo-electronic cell on the opposite side. Both mountings have a small jet of