One admiral declares that he was literally thus cradled, under the breast of a gun-carriage. 
( ( One admiral ) ( ( declares ( that ( he ( was ( ( literally thus ) ( ( cradled , ) ( under ( ( the breast ) ( of ( a gun-carriage ) ) ) ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (CD One) (NN admiral)) (VP (VBZ declares) (SBAR (IN that) (S (NP (PRP he)) (VP (VBD was) (VP (ADVP (RB literally) (RB thus)) (VBN cradled) (, ,) (PP (IN under) (NP (NP (DT the) (NN breast)) (PP (IN of) (NP (DT a) (NN gun-carriage)))))))))) (. .)))
A viking declared he was cradled under a gun carriage.
( ( A viking ) ( ( declared ( he ( was ( cradled ( under ( a ( gun carriage ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT A) (NN viking)) (VP (VBD declared) (SBAR (S (NP (PRP he)) (VP (VBD was) (VP (VBN cradled) (PP (IN under) (NP (DT a) (NN gun) (NN carriage)))))))) (. .)))