308 Miss Cora B. Sanders on lite RItopalocera 



to the University was also very opportune at the present 

 moment, when the question of the existence of species, and 

 the extent of variation to which they are subject, are especially 

 attracting the attention of zoologists." 



After giving an account of the views of various writers on 

 these questions and expressing his own belief " in the inde- 

 pendent and original creation of species," Professor Westwood 

 concluded as follows : — 



" A careful study of the Burchellian collection required to 

 be made, and it could not be doubted that it would afford 

 satisfactory data for ascertaining the specific status of many 

 of the insects which had fallen under Dr. Burchell's notice." 



It is a keen pleasure to me to realize that in gradually 

 publishing an account of the Burchell Collection I am carrying 

 on a work to which my great predecessor devoted so much 

 time and thought. 



A search through Burchell's manuscript brought to light a 

 scrap of paper covered with figures which tell us much of the 

 man and his work. It is a memorandum of the dates at 

 which he unpacked each section of his immense collection of 

 insects and relaxed and set out the specimens. The majority 

 of the dates refer to the " Lepidoptera &c," and these are 

 reproduced below : — 



" Lepidoptera &c. relaxed and put out. 



[Specimens captured between Relaxed and set out 



following dates.] [between following dates]. 



7. 9.28 to 28. 2.29 [Set] 26.12.39 to 8.1.40 



28. 2. 29 „ 29. 4. 29 „ 9. 1. 40 „ 3. 2. 40 



30. 4. 29 „ 5. 2. 30 „ 4. 2. 40 „ 9. 4. 40 



tlie Cedarwood Box 

 27 to 16. 4. 28. 



Lepidoptera Sec. relaxed and put out from 

 containing [captures] irom 20. 7. 2 



25. 8. 27 to a.[m.]29. 8. 27 [Set] 12. 2. 44 



6. 8. 27 „ 26. 8. 27 „ 6. 4. 46 to 30. 4. 40 



11. 2. 26 „ 14. 2. 26 „ 30. 4. 46 „ 20. 6. 46 



27. 1. 26 „ 9. 2. 26 „ 29. 6. 46 „ 22. 7. 46 



Lepidoptera of Rio de Janeiro, Minas, &c, &c. 

 27. 1. 26 to 8. 2. 26 [Set] 



„ 27. 1.26 „ 



14. 1.26 „ „ 



31.12.25 „ 14. 1.26 



6. 12. 25 „ 31. 12. 25 



7. 11. 25 „ 6. 12. 25 



4. 11. 25 „ 6. 11. 25 



7. 11. 25 „ 6. 12. 25 



29. 10. 25 „ 4. 11. 25 



999] 27. 10. 25 „ 29. 10. 25 



819]23. 10. 25 „ 998] 27. 10. 25 



N.B. — Finished putting out and unpacking the whole of my Brazilian 

 Insects on 26. 9. 46." 



