nature lover takes the course to learn how to make life more beautiful. It would 

 be difficult to formulate any fixed inquiries which could be sent to all these varied 

 classes. 



Pupils are taking this course who would not care to answer set questions 

 or to do prescribed work such as is usually necessary when one takes a corre- 

 spondence course. A number of teachers in one school may take a single copy of 

 The Butterfly Farmer and all may derive the benefit of any information it may 

 publish during the year. No one of them is required to answer a list of questions 

 tending to show their requirements or proficiency. 



Each pupil is permitted and urged to write me regarding their difficulties, 

 the particular things they desire to know, and are especially requested to tell me 

 what they do not understand regarding the business. Such letters arrive daily 

 and are promptly answered. With such a varied class of "correspondents" the 

 "correspondence" involved in giving this course is individual and personal. Some- 

 times the biology class of a high school becomes a subscriber and each one of its 

 members is requested to write me for the information most desired in his particular 

 case. If my methods of conducting a correspondence course are unique, the busi- 

 ness itself is unique. Each correspondent desires knowledge suited to his partic- 

 ular needs and environment, and this knowledge can be obtained tor the asking. 

 When questions are asked me in letters which I cannot answer, I try to ask them 

 of some one who can. So many learned men and women are trying to help me 

 that I generally know where to apply for the answer to a difficult question. 



Most of the subscribers to The Butterfly Farmer are seeking to learn the 

 different methods and views of the various entomologists who are contributors. 

 They wish to do no work whatever in connection with the course, but simply 

 subscribe for this magazine as they would for any other. I receive beautiful help- 

 ful letters from this class, but seldom a query. The course, without the magazine, 

 would lack breadth, scope and elasticity. Combining the two, and personally cor- 

 responding with each one who desires, I trust to accomplish results. 



NAMES OF PURCHASERS. 



The following are purchasers of eggs, pupae or perfect specimens and pay 

 cash for desiderata. They desire price lists. Satisfy yourself of their reliability, 

 make your own contracts and deal with them on your own terms and at your own 

 risk. All subscribers who are purchasers and all who have specimens for sale or 

 exchange may advertise under this heading without charge: 



The Kny-Scheerer Co.. 404-10 West 27th St., New York, N. Y. 



J. G. Duthie, editor "Canadian Thresherman and Farmer," Winnipeg, 

 Canada. 



Herman H. Brehme, 74 1 3th Ave., Newark, N. J. 



Georee E. Colman, P. O. box 43, Franklin Park, Mass. 



Dr. Franz Gerzema, 731 Lincoln Ave., Peoria, 111. 



Pattie Hutchinson, Beeville, Bee County, Texas. 



Henry Donaldson., 1 Queen St., Briggs, Lines, England. (Offers $1 per 

 hundred for ova of stick and leaf insects.) 



J. Henry Watson, 70 Ashford Road, Withington, Manchester, England. 



Dr. William Barnes, 1 52 E. Prairie St., Decatur, 111. 



E. Herfurth, Postsecrctoir, Weimar, Germany. 



Walter Pierson Blackwood, Jr., 3621 Virginia Ave., Kansas City, Mo. 



Wm. H. Broadwell, 571 Hawthorne Ave., Newark, N. J. (Geometridae.) 



38 



