PROBLEMS IN SPHEROIDAL TllIANGLfiS. l^\ 



liave firft made Ibis arfumptlbn m order to (horten his folullon, 

 and on finding the calculations to agree with obferva'tioii, to 

 have never after returned to the fubjedl. The mathematician"? 

 of his time were unwilling or Unable to follow him, and the 

 queftion remained as it came from his hands, till the middle of 

 the laft century. Had doubts arifen and objections been Part- 

 ed, the genius of Newton might have been once more roufed to 

 action, and continued to enlighten the fciences to the lafi^. 

 But unfortunately no fuch incentive was given, and Newton 

 flopped Oiort in the career of his glory. The evening of his 

 life was devofed to other fludies j but however ufefully he may 

 have been employed, there are few who will not be inclined 

 to lament that he ever laboured in the Mint or the Rcve- 

 lalion?. 



Thus much I have thought it not entirely foreign fo obferve 

 on one of the moft remarkable efFeds of the oblatenefs of the 

 earth's figure, and in juftice to its hnmortal difcovefer, the 

 inventor of the modern analyfis> the father of phyfical altrd- 

 nomy, and the preceptor of Europe. 

 I am. Sir, 



Your moft obedient fervant, 

 Fortfiiuyvih, PEREGRfNUS PROTEUSo 



May G, ISOi; 



Corredtons to be made in the firji Letter. 



In page 12, line 20, after paper infert hit. Ixv page 35j 



(^ 

 line 2.3, &c. divide the coc(Bcient of the term —by cof. X cof. ?> ; 



a ^ 



alfo in page IG, lines % and !'2. In page 16, line 9, dek ■ir\6L 

 cof. A tof. (?>''; and alfo in line \\. In page 17, line G\ 8^(% 

 for cof, w read fin w. In page 18, line 25, for Pc, Qc*,* Re, 



-c>ad P.-i, Q— , R~. 

 (I, a <f. 



Vox. VIII.- JULV, 1S04.. M De/cnption 



