ERRATA. 



Page 7. line 15. /or ? X F G read ^ X F H 



ib. ih. for z read z 



16. ii-for § 4- f"""^ § *4 

 ib. ib.for flcof?!^ f^a^^ a^cof? 



ao5. 8. /or fin (»—')=. &<=. rffl<f «— 1=, &c. 



cof» , cofn 



232. iJ./or tan — X4j°, r^flf^ tan — xfin45'' 

 281. 4- /<"■ tranfverfe read conjugate 



*93- 



2. /or (i + '■^"'^ (^ +0 



ERRATA IN Vol. IV.— Hist. 



fage 6. //»« 4. /or tan -^ rcaif tan — . AJfo ibid, line Z.for 1 read R. 



