The Pacific commercial advertiser. [volume] (Honolulu, Hawaiian Islands) 1856-1888, 1875-01-09
Yellow rir .. ship.t,mher.

Tbe yeIlor Ar. f5nnd on the Pacific Coast. from
Alaska TO California. forms a large proportion Of
the dense fOrests of Puget Sound and the Oregon
c~oast-iIae but NJ PaRet Sound. where the largest
supplies are obtained, is where most Of the vessris
heretofore %cOnstructed have been built.
The strength or the yellow Or is not a matter Of
doubt. n u has been proved BY the United states
Navy Department AZ MATu Island. by a series Of
severe d accurate tests rrsnlung In the estab.
l'shnlent OF tbe hr as TIE SapsT1cT OF svsrAgs white
The durability Of yellow &c as a ship timber, Is
proved by an experience Of about twenty years on
this coast aRd Tor repairs on veascls running %
all parts OF the wotld during The same period. In
the selection Of Or for Ehip-timber. the same sound
for sAipss Oak can be used that would . dry
rot Ia three years. Notably. the Great RepUblie
built By Donald Mckay. Was rotten In three years
after launching. and had TO be rebuilt, Where ts
the seaROing vessel constructed "a yellow Or that
required rebuilding from general roti The jndg'
meat OF the most experienced builders az Puget
sound AS that trees growing near salt water. OF
not too large 9 size. and doeked y in salt water
for several months before using. are the best. and
Us lar a. practicable the a. but1 staH " shOnld be
used. particularly In the frames. at and near the
warter-line. whsTsi a. is most liable 10 decay. Thus
selected aud used. properly salted on the stocks
and ventilated. the wood has stood the severest
tests as TO durability in sailing vessels and steam
ers. and under circumstances where oak would
have decayed 10 a short time.
In fastening. the yellow Or is the superior Of oak
In the effect IL has on both iron aud wood fastcn'
iRgs. In examining oak. where iron bolA have
been driven through the frames, IL will ~5aNfound
that in a fec years the wood around the iron has
become dry rotted from corrosiou Of the oxyde of
iron. so that it can be picked out with the point of
n knife. and the iron bolt Itself has become equal
iy demoraiIEed1 IRON rust. SO that the iastenings are
valneless and wOrse-no dependence IL placed on
It's security when there Is no security there, lp hr,
the effects the direct opposite. In /" backing" out
iron bolts from DR.. the iron - found as strong aud
bright as when driven. Prof. Davidson. In the
survey OF the Alaska coast. found a small Russian
vessel, wrecked on the shore, which the natives
said bad been in that condition Tor about thirty
years. The iron bolts wereS strong and good, and
the coast wood of which It was built was sound In
every particular. The pilot-boat J. O. cousins,
built about 6fteen years since by the weii.known
builder for whom she was named, was opened q
short time since. and her timbers and fastrnings
found in good order. In fastening oak vessels
with locust tree-nails, the effect OF age IL 10 shrink
the tree-nails from the oak aud thus weaken the
fastening. while in Or IL " holds its grip" for years.
When tree-nails OF the " buttstuH' Of Or are used,
they are found to answer an admirable purpose,
nearly or quite equal 10 locust Ala.