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October 7, 1911


JAMA. 1911;LVII(15):1207. doi:10.1001/jama.1911.04260100033009

An April, 1911,1 I reported the finding of eosinophil Polymorphonuclear leukocytes in smears taken from a series of cases of vernal catarrh, confirming Herbert's discovery. Interested in this finding and knowing the many points of similarity between vernal catarrh and the conjunctivitis of 'hay-fever, I have been led to the examination of smears taken from a series of cases of the latter disease.

In smears taken from the conjunctivæ of a series of cases of hay-fever, I have found eosinophil polymorphonuclear leukocytes in great abundance; indeed the cellular content of a smear from the one disease is the same as that from the other.

This observation shows another, and possibly a very important, similarity between the two diseases. Weknow that the conjunctivitis of hay-fever is due to pollen. From my observation of eosinophil cells in the conjunctival secretion of hay-fever, we know that pollen may cause an inflammation of

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