1^.0 Travels through the 



equations ; becaufe the quantities, negle£ted in the accurate 

 equations, whence they are derived, are infinitely fmall quan- 

 tities. On the theory, therefore, of this kind of equations 

 is founded the folution of the queftion before handled, and 

 that of all queflions of that fort. For this reafon it is, that 

 I (hall proceed to invefligate the principles of the theory of 

 lmperfetl equations, which is the foundation of the Infinite- 

 fimal Calculus, or rather, which is itfelf that calculus. 



[1 o be continued.] 



V. Account of C. F. D.4 mberger's Travels through the 

 interior Parts of Africa, from the Cape of Good Hope to 

 Morocco *. 



JL HIS adventurous traveller, a native of Germany, and 

 brought up to the bufinefs of a carpenter, enlitied at Amfter- 

 dam, in the. year 178 1, as a foldier in the fervicc of the 

 Dutch Eaft India Company, with whom he entered into an 

 engagement for feven years. On the 21ft of June he (ailed 

 from the Tcxcl, and on the 21ft of September arrived at the 

 Cape of Good Hope, where he was conveyed to the hofpital 

 along with eighty-four other fvck, who had come out in the 

 fame vefiel. After being a month in the hofpital, he was 

 relieved from military duly, by being taken into the fervice 

 of Mr. Brand, the poflmafter at the Cape and prefident of 

 the council, who font him toFalfeBay, where he remained 

 a whole year, employed in various labours, fiich as loading 

 and unloading mips, cutting down wood in the mountains, 

 and other things of the like kind. 



Soon after he was promoted by his mailer to be his houfe- 

 fteward, and in this fituation difcharged his duty for fome 

 time to the complete fatisfacTtion of his employer, who after- 

 wards carried him back with him to the Cape Town ; but 

 having quarrelled with his miftrefs, he found himfelf expofed 

 to fo much ill-treatment, that he refolved to defert, and to 

 make his way to Eiirope by land. In order that he might be 

 laetter able to carry this plan into execution, he requefted his 



* From C. F. Damberger's Landrcife in das inncre von Afrikr, in den 

 Jahren 1.781 bis 1797. Leipzig, 1S01. 



3 mailer 



