66 Mr. Burckhardt's Proceedings m Egypt, S^x. 



ever may be my fate, some profit has, at least hitherto accrued 

 from my pursuits, and that the Association are now in possession 

 of several journals of mine, treating of new and interesting 

 countries.' 



Such was the eager and lively hope with which he looked 

 forward to joining the departing caravan ! but Providence or- 

 dained otherwise. On the 5th of October 1817, he was suddenly 

 seized with a dysentery, which, in spite of the attendance 

 of an English Physician, hurried him to an untimely end on the 

 15th of that month. No words can better depict the last mo- 

 ments of this object of our regret, his ardent mind and his affec- 

 tionate heart, than those of the letter from the consul-general 

 of Egypt to the secretary of the African Association, alluded 

 to at the beginning of this article. 



Art IV. Observations on the Medico-Chemical Treatment 

 of Calculous Disorders. By William Thomas 

 Brande, Sec. R.S. &)C. Continued from page 209 of 

 Vol. VI. 



Section 2. On the Production of Calculi in the Kidneys, their 

 Nature and Treatment. 



Having endeavoured in the first Section of this Paper to 

 point out the principal circinnstances connected with the early 

 symptoms of gravel, and with their treatment, I shall now en- 

 deavour to give some account of what may be called the second 

 stage of the disease, or that in which the materials are voided 

 in an agglutinated form, so as to constitute small calculi, or 

 gravel, limiting the term sand to the earlier stages. It gene- 

 rally happens that the formation of gravel is preceded by one or 

 more attacks of sand, and that concretion is prevented by due 

 precaution in that earlier stage of the disorder ; but this is by 

 no means always so, for not unfrequently the first alarm of the 

 patient is occasioned by his voiding a calculus, and that of no 

 small size. 



