Z/jr^^ 



THE BEGINNINGS OF LIFE. 



3 0ro[ 



conclusions have been independently confirmed by the 



results of the recent experiments of Dr. Burdon Sander- 



^ Speaking of 'Pasteur's solution/ with which 



son 



^* ^ have J 

 ^^vious boiii„ 



^llj , "i he had been working, he says : 



'^■esence of 



previous 

 5^ or more 



7 



No 



of ex- 



Hl 



1 



i 



posure has any eftect m determining the evolution ot 

 microzymes. This conclusion, although it is in com- 

 plete accordance with what we have already learned as 

 to their relations, both in the visible and invisible 



5 although tk state, to moisture, is of such importance that it seemed 



it is containec 



' paper. Ani 



3«'i; 



ary 



The 



The 



following is the most striking of the experiments 

 luid become ti were made with this object in view. "^January 7. 

 , all that ODf bent glass tube for the absorption of carbonic acid by 

 ^ith a small! potash^ known as Liebig's bulbs, was heated to %od'(Z 



and filled with boiling test solution. It was then 



Lo a solution 



attached^ 



a vulcanite connector which had been 



was 



1 ble fluid previously boiled, to an aspirator. During the follow- 

 perhaps moif 

 ling turbid, tfi 



o or three *; 

 ■ten a, what cai 



not very 



cotf 



microzymes 



ikiiig 



facts ^ 



to 



find tto' 



xpo^^ 



dtoa 



tetfP 



t« 



drawn through it for a few hours 

 daily. On the 23rd there were numerous Torula cells 

 with submerged tufts of mycelium in the liquid, espe- 

 cially in those bulbs to which the air had access first. 



The result shows in the 



y that air is entirely free 

 from living microzymes, but that the activity of the 



development of penicillium is in proportion to the 

 degree of exposure.' 



L ■ 



M. Pasteur, Prof. Lister, Prof. Huxley, and others. 



or 



dedby 



prof' 



& 



I 



Loc, cit., p. 59. 



