64 SOLID CULTIVATION MEDIA. 



tilled water. The flasks are provided with compact cotton wool 

 plugs. To make these, a square piece is taken from a sheet of 



FfG. 23. — Mticor Lichiheiniii growing on bread paste. 

 On the surface of the dehcate growth, small translucent yellow 

 beads of liquid (whichs give an alkaline reaction) are seen. 



cotton wool, and the corners consecutively turned inwards towards 

 the centre, till a firm round mass is produced. This is pushed into 



