. Bacteria and their products. Bacteriology. 288 BACTERIA. by keeping the plates on which the nutrient medium was spread in an atmosphere of hydrogen. When puncture inoculations are made in tubes of gelatine to which grape sugar has been added, there is no growth along the part of the. track of the needle near the surface, but in the deeper part away from the air, there is a moderately luxuriant growth which appears in the form of a central. Specimen from pure culture of the Tetanus Bacillus, with enlarged spore-bearing "drum-stick"ends. X looo. streak, from which numerous spikes pas
. Bacteria and their products. Bacteriology. 288 BACTERIA. by keeping the plates on which the nutrient medium was spread in an atmosphere of hydrogen. When puncture inoculations are made in tubes of gelatine to which grape sugar has been added, there is no growth along the part of the. track of the needle near the surface, but in the deeper part away from the air, there is a moderately luxuriant growth which appears in the form of a central. Specimen from pure culture of the Tetanus Bacillus, with enlarged spore-bearing "drum-stick"ends. X looo. streak, from which numerous spikes pass laterally into the surrounding medium. The culture at this stage has very much the appearance of a spruce-fir, the lower branches {, those in the deeper part of the gelatine where the access of oxygen to the organism is entirely cut off) being longer and more distinctly marked than those nearer the surface. Later this characteristic appearance is lost, the organism invades the whole of the nutrient medium,. 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 Woodhead, German Sims, Sir, 1855-1921. London [etc. ] The W. Scott Publishing Co. , Ltd
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