. The bee-keeper's guide; or, Manual of the apiary. Bees. OR, MANUAL, OF THE APIARV. 477 There is no longer any doubt as to the cause of this fearful plague. Like the fell "Pebrine," which came so near exter- minating the silk-worm, and a most lucrative and extensive industry in Europe, it, as conclusively shown by Drs. Preusz and Schonfeld, of Germany, is the result of minute parasitic organisms. Schonfeld not only infected healthy bee-larvae, but those of other insects, both by means of the putrescent foul brood and by taking the spores. Professor Cohn discov- FiG. Healthy St
. The bee-keeper's guide; or, Manual of the apiary. Bees. OR, MANUAL, OF THE APIARV. 477 There is no longer any doubt as to the cause of this fearful plague. Like the fell "Pebrine," which came so near exter- minating the silk-worm, and a most lucrative and extensive industry in Europe, it, as conclusively shown by Drs. Preusz and Schonfeld, of Germany, is the result of minute parasitic organisms. Schonfeld not only infected healthy bee-larvae, but those of other insects, both by means of the putrescent foul brood and by taking the spores. Professor Cohn discov- FiG. Healthy Stage. Early Stage. Foul Brood—Prom A. 1. Moot Co. ered, in 1874, that the cause of foul brood was a microbe, Bacillus alveolaris. Mr, Hilbert, the following year, showed that these micro-organisms existed in the mature bees as well as in the brood. L,ater Mr. Cheshire gave the microbe the name of Bacillus alvei. Fungoid growths are very minute, and the spores are so infinitesimally small as often to elude the sharp detection of the expert microscopist. Most of the terrible contagious dis- eases that human flesh is heir to—like typhus, diphtheria,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Cook, Albert John, 1842-1916. Chicago, Ill. , George W. York & company
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Keywords: ., bo, bookcentury1900, bookdecade1900, booksubjectbees, bookyear1904
