ALCOHOLIC FERMENTS. 



147 



of the walls may take place, so that a true partition wall 

 results ; the cell then becomes a compound spore divided into 

 several chambers. 



FIG. 38. Spores of Sacch. cerevisise I. in the first stages of germination (after 

 HANSEN) : at a, d, e, and g, formation of partition walls ; at e, f, and g, the walls of 

 the mother cells have become ruptured ; at g a compound spore divided into several 

 chambers, the coherent wall is ruptured in three places. 



During germination (Fig 39) the spores swell and the wall 

 of the mother-cell, which, originally, was moderately thick and 



FIG. 39. Budding of the spores in Saccharomyces cerevisiae (after HANSEN) : <i, 

 three spores without the wall of mother-cell ; l>, cell with four spores ; at b' the wall 

 of mother-cell is ruptured ; c, cell with four spores, three of which are visible ; at c' 

 and c" the ruptured wall of mother-cell is seen ; d, cell with three spores, at d'" the 

 ruptured wall of mother-cell ; e e'"" development of a very strong colony ; / h, 

 other forms of development ; at k" the wall between the two spores has disappeared. 



elastic, stretches out and consequently grows thinner. It is 

 finally ruptured, and then remains as a loose or shrivelled 



