The World's Columbian Exposition 1893. Chicago, U.S.A. 1893
Official Catalogue With Illustrations issued by the Royal Danish Commission

148 DENMARK and growth of the children were dependent not only on their nutrition, but on general cosmic laws, and he established most ingeniously that all organic functions on earth are in continuous and congruous oscillations of intensity under impulsions due to the rays of the sun. In this case the layman turned savant, but on the other hand the scientists put themselves at the disposal of practical life. Above (p. 9) we have named Mr. N. J. Fjord (1825-1891); and we shall further quote the name of Dr. Emil Chr. Hansen (born 1842) whose researches concerning the physiology of fermentation have revolutionized the breweries, as far as fer- mentation goes. He has (1883) succeeded in isolating the yeastcell, following its development and propagation, and has thus been able to produce a pure cultivation of a yeast that always gives a sound beer; numerous pupils are working under his guidance, and pure yeast is now exported from Copenhagen to all beer-brewing countries (see p. 14). * * * The laboratory with which Dr. Emil Chr. Hansen is connected is the physiological laboratory of the Carlsberg Brewery established by the famous founder of that brewery, Mr. J. C. Jacobsen (1811—1887). It was the first brewery in Denmark making Bavarian beer, and, through his energy, it soon became the largest too. He, however, carried it on not as a business enterprise only, but as a scientific institution. A physiological laboratory was therefore a necessary department, and Dr. Hansen having made his most important discovery, J. C. Jacobsen did not keep it as a secret reserved for his own brewery, but placed it at once at the disposal of all the world. He was one of those men of industry that had been