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29 



standing in quicksilvei* ; jelly, jar and metal 

 all being strongly heated — thus, as you can 

 readily understand, completely excluding any 

 other germs. In three days, these particular 

 germs had amazingly multiplied as rounded 

 jointed grains in waTy clusters, and each lit- 

 tle portion of the jelly when placed in pieces of 

 fresh jelly was capable of plentifully propaga- 

 ting them in the new material which, in turn, 

 produced them in others — and so on. 



I was curious to see how they would adapt 

 themselves to human blood : to avoid the red 

 color I let some venous stand quietly, having 

 skimmed off some crust ; and drew away the 

 greenish yellow watery serum from the cruor 

 and heated it for some hours to 140 degrees of 

 Fahrenheit which I have found sufficient to 

 destroy germ life. In this the beings appeared 

 in only thirty hours ! and were larger, fibroiis 

 and moist. Other children in the same house 

 with the boy from whose throat I obtained the 

 matter, yielded none of the peculiar germs re- 

 ferred to — until some acquired the same dis- 

 ease, these then exhibited the noxious organ- 

 isms in his or her greyish throat matter. 



Reflection on this, leads us to consider how 

 many diseases may be introduced, transmitted 



