jgQ Ocean Magnetic Observations, 1905-16 



The name given to the vessel, Carnegie, was the result of careful consideration^ 

 At one timeTt was proposed to call the vessel the FrankUn, which would have been 

 nuirapTopri^^^^ of the interest in physical science of the illustrious pioneer 



LfesSor'of atmospheric electricity. However, there were already several vessels 

 ZSZnUin and it was finally thought best to give ^^e -ag-tic-survey vess^^^^^^ 

 name which would identify her specificaUy with the institution to which she belongs. 

 August iri909 the builder formally turned over the Carnegxe to the Director 

 of tht C tm r;/^^^^^^^^^ Magnetism, acting in behalf of the Institution 

 and on thl day she entered on her trial cruise. Thus m 15 months from he 

 cessation on June 1, 1908, of the ocean work begun in the Pacific Ocean on he 

 SeeTn SoS, a ne; and Special vessel had been built and fully equipped, and the 

 ocean magnetic survey could be resumed. 



DESCRIPTION OF THE CARNEGIE. 

 The principal dimensions of the Carnegie^ are: Length over all 155 feet 6 

 inches- length on load water-hne, 128 feet 4 inches; extreme breadth 33 feet 6 

 nche • depth of hold, 12 feet 9 inches, with a mean draft of 12 feet 7 inches,; and a 

 di nlacer^ent of 568 tons with all stores and equipment on board Her hnes, as 

 wmbe sTen from the frontispiece and Plate 7, Figure 3, and Plate 15, Figure 1, are 

 inr^y, running in a'n unbroken sweep from stem to stern and showing 

 ^trenoth and seagoing qualities throughout. (See also Figs. 8 and 9.) 



1 1 the^^^^^^^^^^ into the construction of the vessel a- non-magnetic 



and are the very best of their kind. The hull is constructed as thoroughly and 

 sltant ally as'^any merchant vessel afloat, the scantlings being the same as those 

 requ red^^^^^^^^^ Bureau of Shipping for merchant vessels of equal tonnage^ 



The keel stem stern post, frames, and dead-wood are of white oak, grown, cut, and 

 JawedTn GreTt;^^^^ Jamaica Plains-within 12 miles of the place where 



rvessefr^^^^^^^ the deck beams, P^-l^ng and ceiUng are of ye«^ and 

 the deck is of Oregon pine in long lengths, ^^^\^^J^'\J\l )^'\ f^^Jf " l^,, 

 PI 8 Fig. 5) is 12 by 18 inches, and to this is fitted a false keel 12 by 4 inches i here 

 are two 'center keelsons, each 12 by 14 inches, and two assistant keelsons 12 by 2 

 Lches The garboard strakes are 6 by 12 inches, rabbeted into the keel. The plank- 

 Wo' "the bottom is 3 inches thick; at the bilge 4 inches, and on the sides 3^2 mches^ 

 T^^e Ih g in the bottom is 3 inches thick, at the bilge 6 inches, and on the sides 4 

 mcLs The main deck beams are 8 by 10 inches, with a crown of 3^2 mche. at the 

 Tnter of the ship. They are joined to the frames with hackmatack knees of 8-mch 



''"^'^The fastenings consist of locust treenails, copper and Tobin-bronze bolts, and 



'"■sns t'sX-' "»"*.«- * ™-.,i- -- "i- 



'This was increased in 1914 about 15 inches. 



