668 PHILOSOPHICAL TRANSACTIONS. [aNNO 1683. 



called the Recreation of the Eye and Mind in Observations upon Snails, by 

 Father Philippo Bonani, a Jesuit; it being a pretty large volume containing the 

 natural history of all the snail kind, where he not only doubts of their pro- 

 duction by eggs, but also endeavours to overthrow most of Signer Redi's experi- 

 ments that tended to establish the principle of an univocous generation, to 

 which he prefers the old principle of corruption for the insects. 



While he was reading this book, he says, he chanced in taking up some 

 flowers, about the J 0th of July, to observe by a border * a cluster of little eggs, 

 which had nothing in them but the white, like the white of an egg ; but on a 

 more diligent search he found another cluster, as large as would fill the palm of 

 his hand, out of which came young snails, some having but just broke the 

 shell, others being half out, and others quite out with the testa of the egg 

 fastened to the tail of the animal. He says the eggs were no larger than pepper 

 corns, and mostly white, but those which were ready to break, tending to 

 yellow ; they were fastened in a lump by a kind of glutinous water. 



Tajapi, sen Aper Mexicanus Moschiferus, or the Anatomy of the Mexican Musk- 

 Hogj-f ^c. By Dr. Edivard Tyson, F. R. S. iSF*' 153, p. 350. 



The shape of this animal is such that it may be easily reduced to the swine 

 kind; though it was much less than our usual hogs; for, from the end of the 

 body, where the tail should be, to the top of the head between the ears, was 1 

 feet 2 inches; from thence to the end of the nose 11 inches ; the compass of 

 the body 2 feet ; the compass of the neck l6 inches; of the head in the largest 

 place 18 inches; and of the snout 12 inches. 



* The common or garden snail is said to deposit its eggs during the summer months, almost as 

 often as once a fortnight : they are laid in shady places, and generally a little below the surface of 

 the mould. From these the young are hatched and completely formed, and with the shells on their 

 backs. 



f The animal here described is the Sm Tajafu of Linnaeus, or Pecari. It is the only species of hog 

 found in the New World, and is considerably smaller than the common hog, and of a more compact 

 form : it is covered on the upper parts with very strong dark brown or blackish bristles, each marked 

 by several yellowish white rings, so tliat the colour of the whole appears mottled, and round the neck 

 is commonly a white collar. The head is large j the snout long; the ears short and upright; the 

 belly nearly naked : there is no tail, and on the lower part of the back is a glandular orifice, sur- 

 rounded by strong bristles in a somewhat radiated direction: from the orifice exsudes a strong- 

 scented fluid, and this part has been vulgarly supposed to be the navel of the animal : the tusks m 

 this species of hog are not very large. 



Dr. Tyson in his anatomical description falls, according to Buffon, into a very material error, viz 

 in aflSrming that the animal has three stomachs, whereas it has in reality but one Btomach, parted a 

 little, like that of the tapir, by two strictures or contractions. 



