ERRATA.

Page 11, line 14, insert after "professors," "said Leander."

19, last line, for "had," read "has."

23, line 2 from bottom, dele "a, a.”

65,

66,

-17, after "Leander,"insert" it is no fault of yours." 4 from bottom, for " principal," read "principle." 107,7 from bottom, after "attribute," insert" said Eugenius."

131, line 8, for "Levoisier," read "Lavoisier."

133,

13, for "abstracting," read "abstractivity."

"read

66

egoism."

of," read "to."