l66 PHILOSOPHICAL TRANSACTIONS. [anNO 16/4. 



tumified and scirrhous. He says, be cut it athwart, and found the inner sub- 

 stance of it very full of vessels, of which he sounded many, and found, that 

 though it was hard, yet it was very full of pipes running through it, which 

 made him at first imagine, that as the spermatic and hypogastric channels of a 

 breeding woman grow large in proportion as the embryo is nourished ; so these 

 hypogastric veins and arteries of the bladder were all dilated, and widened, to 

 feed these caruncles, which from thence, as their placenta, drew all their 

 nourishment : but when he saw that these tubes did far exceed their ordinary 

 number, he believed that this was from thence, because that each capillary 

 branch, whose smallness commonly hides them from us, was much stretched in 

 this case, to furnish this matrix, (if it may be so called) with more blood than 

 ordinary. ^ 



Continuation of Dr. Daniel Coxes Discourse, begun in N° 107, touching the 

 Identity of all Volatile Salts, and Vinous Spirits; tvith tiuo surprizing Experi^ 

 ments concerning Vegetable Salts, perfectly resembling the SJiape of the Plants, 

 whence they had been obtained. 



Concerning volatile salts and vinous spirits, there is nothing worthy of no- 

 tice. One of the two surprising experiments concerning vegetable salts, relates 

 to a lixivium of fern-ashes of a very red colour, the other to a sublimation of 

 volatile alkali from a mixture of equal parts of sal ammoniac and potash. The 

 sublimed salt adhering to the inside of the glass head or receiver, exhibited a 

 pleasing representation of firs, pines and other trees. 



More Observations from Mr. Leuenhoeck. N° 108, p. 178. 



I took the feye of a cow, and having with a great pin pierced the cornea, 

 found in the aqueous humour some few crystalline globules swimming. The 

 dark-brown colour which I saw in this eye, consisted of dark gray globules. — 

 The crystalline humour, which in hardness almost resembles a nutmeg preserved, 

 I have with a rasor cut asunder, and found it made up of orbicular scaly parts, 

 lying upon one another, which had their beginning out of the centre, and all 

 consisted of crystalline globules. 



Having viewed the vitreous humour lying deeper in the eye, I saw many 

 more globules than in the aqueous, which I took out from the top of the eye. 

 The transparent cornea, after I had let it dry for several days, I viewed also, 

 and found it likewise to consist of crystalline globules. In the second tunicle of 

 the eye, there appeared divers very fine glittering colours. It was black, and 

 consisted also of globules, and viewing the single globules, I found them dark. 



