114 



THE FLOATING-MATTEK OF THE AIE. 



than others. They had been all at first alike in colour. 

 Out of the thirty tubes four only were free from mould. 

 Three of these were adjacent to each other, the fourth 

 at a distant portion of the tray. 



The Penicilliwm was exquisitely beautiful. Its 

 prevalent form was a circular patch made up of alternate 

 zones of light and deep green. In some cases the liquid 



Fig. 9. 27111 Oct., 6.30 p.m. 



• • 



0999 







Muddy. 



Cloudy. 



o 



Slime. Slime and mould. Clear. 



was covered by a single large patch ; in others tliere 

 were three or four patches, each made up of its dif- 

 ferently coloured zones. Reticulated patterns also 

 occurred. Three kinds of Peiiicillium seemed strug- 

 gling for existence, namely : — tliat just described ; a 

 second kind, of the same consistency and colour, but 



