220 PHILOSOPHICAL TRANSACTIONS. [aNNO 1765. 



suffering, she had no assistance from medicine or art, in any shape whatever; 

 so that the exclusion of the stone was wholly the work of nature. 



This stone is represented by fig. 2, pi. 5, being a side view of it: a shows the 

 stone as indented by the pressure of the neck of the bladder, where appears the 

 nucleus marked b; cc, several small striae leading to those larger canals marked 

 ddd, being the only passages by which the urine could get off, which was con- 

 tinually draining away ; the lower canal appears corroded by the acrimony of the 

 urine; ee, two appendices of fresh calculous matter. The weight of the stone 

 was 2 oz. 2 dr. 24 grs. Its length was 3-|- inches, and its compass at the 

 thickest part at a, 4 inches -f-. 



XX, Astronomical Observations, made at Vienna. By the Rev. Father Jos, 



Liesganig. p. 130. 

 These observations of occultations and eclipses, are preceded by some remarks 

 by Dr. Bevis, to whom they were sent, to the following purport. By Fa. L.'s 

 own account, he was appointed to the_ Observatory of the Jesuit's College at 

 Vienna towards the end of 1754; where he found, indeed, a large stock of in- 

 struments, but mostly unfinished and imperfect; that, after spending a whole 

 year in getting them fit for use, he had disagreeable and unavoidable avocations, 

 which kept him some years from resuming the care of his beloved Observatory; 

 but that he now finds himself in possession of the following complete apparatus. 

 1 . Two mural quadrants, each of Q feet radius, placed north and south in the 

 meridian (the Vienna to the London foot, as 10000 to 9646.) 2. A 6-foot 

 quadrant, supported by a vertical axis, and convertible to any azimuth. 3, A 

 10-foot sector, constructed in P. Boschowick's manner. 4. A 4-foot quadrant 

 placed on the azimuth circle which Tycho Brahe used at Prague. 5. A move- 

 able quadrant of 2^ feet radius, which he used in the mensuration of 3 degrees 

 on their meridian, by order of the Empress Queen, by means of a series of tri- 

 angles, the result of which he is calculating at this time. 6. A transit instru- 

 ment of 64- feet. 



Together with several fixed telescopes, a gnomon 14 feet high, micrometers, 

 &c. of all which he intends to publish a particular description, with his observa- 

 tions taken at Vienna reduced and compared with astronomical tables. He 

 makes the latitude of his observatory, at the Jesuit's College, 48" 12' 35*. 

 April 4, 1764. J. Bevis. 



An Occullation of Spica Vj^ by the Moon, Feb. 20, 1 764. 

 True time. 

 At 14'' SI"" 0^ Immersion of the star in the <['s lucid limb. 

 15 14 16 Emersion from the dark limb. 



