VOL. XIV.] PHILOSOPHICAL TRANSACTIONS. 87 



tice (the author observes) is to be found of the salivary vessels ; but it is to 

 Steno and Wharton, those celebrated anatomists of modern times, that we are 

 , indebted for an accurate anatomical description of them. The present com- 

 munication offers some particulars not observed by them. The last mentioned 

 anatomists have, each of them, described a duct (an upper and a lower one) 

 leading from the parotid and maxillary glands into the cavity of the mouth ; but 

 to these two ducts this author adds a third ; which arises from the sublingual 

 gland, accompanies the ductus Whartonianus, and opens, by an equally manifest 

 orifice, under the tongue, in the same place where that (the Whartonian 

 duct) does. — The gland, indeed, from which this third vessel proceeds, is de- 

 scribed by Steno, under the name of the sublingual gland ; but he erroneously 

 assigns to it several small excretory vessels, which belong to those minute 

 clusters of glands lying near this sublingual gland, but distinct from it. — The 

 author first discovered this duct in March l682, as he was examining the head 

 of a calf. Searching with a probe for Wharton's duct, he slipped it (the probe) 

 accidentally into this duct, till then unknown. — This discovery was afterwards 

 confirmed by observations made on other animals, such as sheep, the bear, and 

 a lioness, to which last the accompanying engravings refer. — This communica- 

 tion concludes with some remarks on the structure of conglobate and conglo- 

 merate glands and their distinctive characters. 



Explanation of the Figures from the Dissection of a Lioness. — Fig. 3, pi. 3, 

 shows the inferior maxillary gland A, with the salivary duct of Wharton BB, 

 and at the same time the adjacent sublingual gland C, with its salivary duct D(now 

 first described) the various ramifications of which are seen dispersed through 

 the whole gland. 



Fig. 4, shows the two orifices, on each side, of the inferior salivary ducts ; 

 viz. that of Wharton's and that discovered by this author; their scite under the 

 tongue is marked by the points of the probes aaaa, passing through the said 

 orifices under the tongue b, which is here turned a little upwards from the lower 

 jaw c, in order to give a clearer view of the parts. 



Essays of natural Experiments made in the Academy del Cimento,* under the 

 Protection of the most Serene Prince Leopold of Tuscany, Translated by 

 Richard Waller, Esq. F.R.S. N° l64, p. 75?. 



This work was published in Italian, in the year 1667, and contains several 



• The Academy del Cimento, that is, of Experiments, at Florence, was one of the most early 

 established in Europe, having commenced in the year 16'57, under the patronage of prince Leopold 

 of Tuscany, afterwards Cardinal de Medicis, and brother to the grand duke Ferdinand the second, 

 who was himself no mean philosopher and chemist, and the inventor of the thermometer, the con* 



