Errata

ERRATA. Page. Line. 144. 18. insert it after if 276. 2. insert comma after lives, and dele after are 311. 3. from bottom, between &c. and $-\frac{1}{2}$ insert -1 1. and 2. from bottom, for $\frac{8}{3}$ read $\frac{5}{3}$ 312. 5. for $\frac{8}{3}$ read $\frac{5}{3}$