editions of security analysis

[edtost]

one of those graham and dodd books you guys seem to rave about. anyway, i was browsing the stacks in my school's library and found two different editions - one from 1934 and one from sometime in the 60's. from looking on amazon, it seems that the current reprints are the editions from 34 and 40.

which of these should i read? does it really matter? will i need to be really careful with the pages of the really old one?

edit: the later edition we have is from 62. there is apparently also one from 51, but i didnt see that one.