more dandelions, less spinach
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398 CURRENT ToPics. [J. F. I.
erect barriers of corrugated tin roofing or galvanized sheet iron. These barriers, although effective in halting the advance and in killing individual insects, are expensive and difficult to handle.
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More Dandelions, Less Spinach.--( Science, Vol. 80, p. 142. ) According to EMMETT BENNETT, in Contribution No. 192 of the Massachusetts Agricultural Experiment station, dandelions in the form of greens are a desirable item of diet. Analyses show the dandelion to have a high protein (15.76 per cent.) and a very low fiber (9.79 per cent.) content, accompanied by a high ash and to contain such minerals as calcium and phosphorus in abundance.
More interesting yet is the discovery that dandelions contain more calcium and phosphorus than does spinach. However, the latter beats out the former in m{ignesium content. Of all those examined, cabbage leaves had the highest calcium content and lettuce the lowest. Mangold ~ leaves are highest in magnesium. There seems to be no good reason why dandelions could not be culti- vated to the extent now enjoyed by spinach.
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THE FRANKLIN INSTITUTE
OFFICERS FOR 1934
President
Vice-presidents
Se~raary Assistant Secretary and Librarian Trea@urer Assislant Treasurer Controller
HENRY BUTLER ALLEN GEORGE H. BENZON, JR. EDWARD G. BUDD FRANCIS T. CHAMBERS G. H. CLAMER CHARLES H. EWING SAMUEL S. FELS
NATHAN HAYWARD HENRY HOWSON C. C. TUTWILER WALTON FORSTALL W. CHATTIN WETHERILL HOWARD MCCLENAHAN ALFRED RIGLING BENJAMIN FRANKLIN MARSHALL S. MORGAN WILLIAM F. JACKSON, JR.
Board of Managers WILFRED W. FRY HORACE P. LIYERSIDGE C. D. GALLOWAY MALCOLM LLOYD, JR. ARTHUR W. GOODSPEED RICHARD W. LLOYD CLARENCE A. HALL CHARLES PENROSE GEORGE A. HOADLEY GEORGE WHARTON PEPPER A. ATWATER KENT JAMES S. ROGERS L. H. KINNARD GEORGE D. ROSENGARTEN ROBERT W. LESLEY SAMUEL M. VAUCLAIN