A curious Person wrote not long since from _Paris_, that there they had, in the house of a Physitian, newly open'd a Mans Vein, wherein they found _Milk_, instead of _Blood_. This being imparted to Mr. _Boyle_ at _Oxford_, his Answer was, That the like Observation about _White Blood_, had been made by a Learned Physitian of his acquaintance, and the thing being by him look'd upon as remarkable, he was desirous to have it very circumstantially from the said Physitian himself, before he would say more of it. The next Moneth may bring us in this Account. The other Particular, mention'd in the Title of this Head, came in a Letter sent also by Mr. _Boyle_, in these words: I shall acquaint you, That Two very Ingenious Men, Dr. _Clark_, and Dr. _Lower_, were pleased to give me an account of a pretty odd kind of Observation: One of them assuring me, That he had several times, in the _Lungs_ of _Sheep_, found considerable quantity of Grass in the very Branches of the _Aspera Arteria_: And the other relating to me, That a few Weeks since, he, and a couple of {101} Physitians, were invited to look upon an Ox, that had for two or three daies almost continually held his Neck streight up, and was dead of a Disease, the owner could not conjecture at; whereupon the parts belonging to the Neck and Throat, being open'd, they found, to their wounder, the _Aspera Arteria_ in its very Trunk all stuff'd with Grass as if it had been thrust there by main force: which gives us a just cause of marvelling and inquiring, both how such a quantity of Grass should get in there; and how, being there, such an Animal could live with it so long. * * * * * _Of a place in _England_, where, without petrifying Water, Wood is turned into Stone._ The same Searcher of Nature, that was alledged in the immediately precedent Observations, did impart also the following, in another Letter from _Oxford_, where he saith, I was a while since visited by a Gentleman, who tells me, That he met with a place in these parts of _England_, where, though there be no petrifying Spring (for that I particularly asked) Wood is turned into Stone in the _Sandy Earth_ it self, after a better manner then by any Water I have yet seen: For I had the Curiosity to go to look upon peices of Wood, he brought thence, and hope for the opportunity of making some tryals to examine the matter a little further, then I have yet been able to do. _Thus far that Letter._ Since which time, He was pleased to give this further Information of the same matter, with a _Mantissa_ of some other Particulars, belonging to this Subject, in these Words.