318 PHILOSOPHICAL TRANSACTIONS. [aNNO 16q6. 



ji further Trial of the said Stones by chemical Distillation. By the same. 



N° 182, p. 145. 



This stone was brought to a gross powder, and conveyed into a coated retort, 

 which was kept for some hours in a naked fire, so hot that the glass melted. 

 The quantity put into the retort amounted to 4. oz. 20 grs. The liquor that 

 came over scarcely afforded 3 or 4 drops, which looked like spirit of hartshorn 

 rectified, and smelled much like the same : which plainly discovered it to be 

 an animal substance, though it afforded much less than the [ordinary] calculus 

 humanus does : and by consequence gave a much larger proportion of caput 

 mortuum or residuum in the retort : all which is very consentaneous to the na- 

 ture of the stone, for its specific gravity was much heavier than the stones are 

 we usually find in the human body ; and therefore the parts may be supposed 

 more fixed, or consisting of fewer volatile parts, such as are carried over by dis- 

 tillation. 



The remainder, weighed in the retort, came to 3 drs. 50 grs. ; 10 grs. of 

 which hung about the neck of the retort in the form of a dirty hard baked oil. 

 The other 20 gr. partly went off in vapour through the lute, and what was found 

 in the receiver in a liquid form. 



On applying a magnet to this caput mortuum, no particles of iron were found 

 to adhere to it. 



Two Observations of the Eclipse, November 30th last, made at Nuremburg ; the 

 one by Mr. G. C. Eimmart, the other by Mr. J. P. Wurtzelbaur. Communi- 

 ■ catedbyMr. Theodore Haak, R.S.S. N° 182, p. 146. 



This eclipse of the moon was the more remarkable, as it fell out very near 

 the apogeon of the moon, and was nearly central ; so that the duration was as 

 great as possible. But neither at London nor Greenwich, nor Paris, could it 

 be seen, for thick clouds, which intercepted the sight of the moon the whole 

 time : the only account we have received is already published, from letters of 

 M. Hevelius of Dantzic, in N" 178 of these Transactions : and now these two 

 from Nuremburg, made by the industrious observers Mr. Eimmart and Mr. 

 Wurtzelbaur. 



The times of the principal phases, by both the observers, were as below, by 



£immart. Wurtzelbaur. 



Beginning of the eclipse g^ 21™ 30*.... Q** 23" 30» 



The total immersion ,....,. 10 23 30 10 25 20 



Beginning of emersion ii,'.'; '. 12 13 10 .... 12 11 3Q 



Endof the eclipse. ........ ,. .....13 14 0....13 14 3Q 



