1'1;«m;i;kss in 1 )1>( < >\ i:i: \ :>.V.i 



g'miiis, Iruils, and mils have lived and dird mit Ix'cause 

 IK) one saw tlic difference clearly enon^li lo i)c able to 

 tiiink what they niii;hl mean to the world; and thousands 

 more will <'"o the same road' until \\»' learn to see and 

 think eivieally. 



Our present-day discoverers. A nnmher of munes ret'en-e(l 

 to in the text under various to[)ies may be nse(l lor refer- 

 ence. Our best authorities, as indicate(l in the ])recedini^ 

 chapter, are often discoverers in their respective tields. 

 They have probably won their positions by some creditable 

 research work. Instead of tryiuii- to <'ive a list of tliese it 

 is better to gather the names as they appear as authors of 

 our best books on birds, insects, forestry, agriculture, bacteria, 

 health problems, and so on, or as tht^v come to us from 

 month to month in the bioloo-ical jourmils or scientific bnl- 

 letiiis. AVe should be thankful to our discoverers for what 

 they write, realizing that their work re(piires patient api)li- 

 cation and crveiit sacrifice of time: and while we follow their 

 investigations in the libraries and journals, we should l)e 

 very careful about encroaching upon their precious time by 

 l)ersonal letters. Perhai)s the most discouraging feature 

 of our present situation is the overwhelming ot our dis- 

 coverer with inquiries by i)eople ^\ho are too indolent to go 

 to their libraries and read what he has written. l*'or any 

 special field we may have one or one hnndretl discoverers 

 for our one hundred million people. Figure out aboui how 

 nuich time it would take to answer a million letters. 



Biological discoverers. Prom the folhtwing brie! list, or 

 from anv historv of science or of medicine, let t'acli member 

 of the class choose some one discoverer, with whom he will 

 become intimately ac(iuainte<l during the remainder ol the 

 year. Let him go to the biographies and histories and strive 

 to catch the spirit that ])rompte(l the man to make his dis- 

 coveries. Then, toward the close of the xcar, let eacli om* 



