MORPHOLOGY. 



development is about to begin. Spores, or protoplasm 

 seeds, are made up of tiny particles of the Defined, 

 protoplasm or active, life-giving substance of 

 which bacilli are composed. They form some- gporg 

 times at one end of the rod, sometimes at the Formation. 

 other end, and again they may form in the 

 center of the rod. They at first appear to be 

 just tiny spots, or dots in the protoplasm, or 

 life-giving matter, of the parent bacillus, but 

 very soon they begin to divide off and are easily 

 distinguished under the microscope as tiny seeds 

 or eggs which scientists call "spores." They 

 rapidly increase in size and break through the 

 framework of the bacillus, the non-essential part 

 of which usually dies and the seeds or spores are 

 left behind in a protecting cover or capsule. 

 This cover or capsule is said to enable spores to 

 resist influences that would very quickly destroy 

 other forms of bacteria. The power possessed 

 by spores to resist heat and drying is found to . 

 be almost incredible. Bacteriologists assert that Power of 

 some forms of spores live on after they have Spores, 

 been exposed for a brief period to a tempera- 

 ture of 360° F. Other forms have been treated 

 to a bath of boiling water for a longer period, 

 and yet both have come through these processes 

 alive and have again germinated. 



While the parent bacillus, as a rule, is sup- 

 posed to die during spore formation, because the 

 spores use up the protoplasm of the parent cell 

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