14 Henry B. Ward 



21. Mitchell saw such a worm in 1845 ^^ Trinidad. The host, 

 a young negress, had come from the West Coast of Africa in 

 1834; the worm made its first appearance in the left eye in 1837, 

 again in 1841. The specimen Mitchell saw was presumably at 

 least eleven years old, although he infers wrongly that the various 

 reports necessarily concern the same individual -parasite. Accord- 

 ing to tradition one had been seen in a family in "Antigua sixty 

 years before. Mitchell reported his case in 1859. 



22. In 1864 Guyon reported another specimen removed by a 

 marine surgeon from a negro in Gaboon. Part of this wonn 

 remained entangled in the deeper tissues of the orbit. 



23. In March, 1868, Dr. Maurel at Gaboon removed a worm 

 from the eye of a native. - Trucy (1873) reported the case as 

 Observation III, in a paper on the Guinea worm. 



24. Rev. Dr. Nassau, a missionary in Gaboon, sent in 1876 to 

 Dr. Morton, a surgeon in Philadelphia, a Loa taken from the eye 

 of a native woman. The worm was examined by Leidy, whose 

 brief description and the account of Dr. Nassau, which also 

 includes cases 25 and 26, were published by Morton (1877). 



25. Rev. Dr. Nassau records that while he has never had the 

 worm in his eye, he has yet seen it moving beneath the skin of 

 his fingers. In Gaboon the worm shows itself at various points 

 of the body of the host, in the fingers and eyelids as well as under 

 the conjunctiva. He has seen the worms both in his own fingers 

 and in those of other persons. The effort to extract one speci- 

 men from his eyelid failed by virtue of the activity of the worm. 

 Though evidently incomplete, this observation furnishes the first 

 suggestion that the parasite is not exclusively confined to the 

 region of the eyes. 



26. An English trader. Captain Stone, living on the Ogooue, 

 had one removed from his eye by a native using a thorn as a 

 needle. The case is quoted from a letter by Dr. Nassau in 

 Morton, 1877. 



27. Dr. Bachelor of Gaboon extracted a specimen from the 

 eye of a native young man. It was on the iris beneath the 

 sclera. This was the first perfect specimen sent to the United 

 States. The case is reported in his letter (Bachelor, 1880). 



2S4 . 



