4 



MICROSCOPIC TECHNIQUES 



"She (Science) warns me to be careful how I adopt a 

 view which jumps with my preconceptions, and to 

 require stronger evidence for such a beUef than for 

 one to which I was previously hostile. My business 

 is to teach my aspirations to conform themselves to 

 fact, not to try and make facts harmonize with my 

 aspirations. — Sit down before fact as a little child, 

 be prepared to give up every preconceived notion, 

 follow humbly wherever and to whatever abysses 

 nature leads, or you shall learn nothing." 



Thomas Huxley 

 in a letter to Charles Kingsley, September 23, 1860. 



