Page:The Harveian oration 1866.djvu/49

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Whitehall, but were in Harvey's own possession in 1649.

For similar reasons, it is most probable, that what he had written "De Amore, Libidine et Coitu Animalium" was in existence in 1650, the year in which his Treatise on Generation was published. (See the end of the 6th Chapter.)

There are indications in Harvey's published works of his having made other researches besides all those which have been enumerated. Thus, in his letter to Slegel (1651) he mentions that he had been preparing an answer to Riolan's more recent arguments. Again, in the Treatise on the motion of the Heart and Blood are passages which show that he had assiduously investigated the physiology of the lungs (Willis' Ed. pages 40, 80); and that his researches had not been unattended with success may be inferred not only from the terms in which he mentions them (multa quamplurimis observationibus a me deprehensa), but also from the remarkable passage in his Chapter on Parturition, which indicates that he had obtained a glimpse, at least, of one of the true uses of air in respiration.

If any further argument be needed to prove that many writings of Harvey's must have existed and been in his own possession subsequently to the plundering of Whitehall, we may be satisfied by the following extract from his will. "Touching my bookes & household stuffe "Pictures & apparell of which I have not already dis- "posed, I give to the Colledg of Physicians all my bookes "& papers & my best Persia long Carpet...Item I give