(7) 



12. The same, collected at Rio de la Chira, Peru. 



13. Cotton produced at Tengor, Chile. 



14. Cotton produced at Copiaco, Chile. 



15. Silky cotton from the same place. 



16. Light "Vicunya" cotton from the same place. 



17. Wild cotton. — The opened bolls of Gossypium punctalum Sch. & Thon. 



Native of tropical America and cultivated. Collected by N. L. Britton in 

 1908, Jamaica, West Indies. (See herbarium specimens.) 



18. Open cotton bolls of the same species. Grown at Fayette, North Carolina. 



Presented by Mrs. J. H. Eggleston. 



19. American upland cotton. — The fiber of the same removed from the seed. 



20. Barbadoes cotton.— The cotton of Gossypium barbadense L. Native of the 



West Indies and cultivated. Collected by N. L. Britton and C. F. Mills- 

 paugh in March, 1907, at Cat Island, Bahamas, where it had escaped from 

 cultivation. 



21. Algodon Despipitado (cotton deprived of its seeds). From Apatzingan, 



Mexico. 



22. Algodon Coynche. — A variety with brown fiber. Produced at Oaxaca, 



Mexico. 



23. Algodon Estrangero (foreign cotton). — Cotton upon the seeds, grown at 



Apatzingan, Mexico, from imported seed. 

 24- 2 The open bolls. 



25. Cotton grown at Sarabia, Negros. 



26. Cotton grown at Bulas. 



27. Another sample from the same locality. 



28. Cotton grown at Lingajon. 



29. Cotton grown at Arapo, Cebos. 



30-33. Philippine Island cottons without definite data. 



34. Seeds of American upland cotton with the lint attached. Grown at Para, 

 Brazil. 



35. 3 Crude cotton fiber before treatment. 



36. Lapped fiber ready for carding. 



37. Carded cotton ready for final cleaning. 



38. Cleaned cotton ready for bleaching. 



39. Cleaned and bleached cotton rendered absorbent and ready for packing. 



40. Waste from absorbent cotton during its manufacture. 



41. Fly absorbent waste taken out by carding. 



42. Card strippings. — Another waste product removed. 



43 . 4 Ordinary. 



44. Good ordinary. 



2 Numbers 24-29 comprise a set of Philippine Island cottons, presented by 

 E. B. Southwick. 



3 Numbers 35-42 represent the products obtained in the successive operations 

 in the manufacture of absorbent cotton for surgical purposes. In this work, the 

 cotton must be scrupulously freed from all impurities and fat, thoroughly bleached 

 and rendered aseptic. Presented by Seabury and Johnson, of New York City. 



4 Numbers 43-49 form a series of samples representing commercial grades of 

 cotton recognized by the New York Cotton Exchange. 



