American Oak

iSsq., the erainent ship-builder, in a letter irom Europe, to the Commetcial BulletiD, of Boston, epeaks of American oak as follows : "I cannot help pronouncing rny opinión on this occasion, that tlie Atnorican white oak growing alongthe coast iroin New ICampshire southward to Virginia and Marylaml is the best material for fhip-building exiBtlng in Iho world ; and I say this after having had an opportunit}7 to examine the beft stocks ol timber in thu navy yards of England and France, out in all parts of tho globo. 1 conQdently espress my opinión tbat sh'ips built vnth the best seasoned American white oak wil] on an average, attain an age of over SOyears, as it alao bas been provej by ■ euce."