, ▁but ▁was ▁of ▁higher ▁quality ▁than ▁most ▁third - class ▁accommod ation ▁for ▁ships ▁of ▁the ▁period , ▁and ▁r anged ▁in ▁scale ▁from ▁two ▁or ▁four ▁ber th ▁cab ins , ▁to ▁open ▁ber th ▁d orm itories ▁as ▁the ▁che apest ▁option . ▁Pass enger ▁facilities ▁included ▁a ▁d ining ▁sal on , ▁a ▁library ▁and ▁a ▁sm oking ▁room : ▁These ▁facilities ▁were ▁considered ▁lux ur ious , ▁and ▁were ▁not ▁at ▁the ▁time ▁normally ▁included ▁in ▁third - class ▁accommod ation . ▁One ▁of ▁the ▁advantages ▁of ▁having ▁a ▁single ▁class ▁of ▁accommod ation ▁was ▁that ▁passengers ▁could ▁have ▁a ▁free ▁run ▁of ▁every ▁part ▁of ▁the ▁ship ▁except ▁the ▁bridge , ▁instead ▁of ▁being ▁conf ined ▁to ▁the ▁part ▁of ▁the ▁ship ▁reserved ▁for ▁one ▁particular ▁class . ▁ ▁As ▁well ▁as ▁passenger ▁accommod ation , ▁all ▁of ▁the ▁J ub ile e ▁class ▁also ▁had ▁a ▁substantial ▁ 1 5 , 0 0 0 ▁dead weight ▁tons ▁of ▁cargo ▁capacity , ▁in ▁seven ▁cargo ▁holds , ▁most ▁of ▁which ▁were ▁re fr iger ated ▁using ▁a ▁carbon ic ▁an h yd ride ▁system : ▁These ▁were ▁intended ▁princip ally ▁for ▁the ▁transport ▁of ▁Australian ▁meat , ▁with ▁the ▁capacity ▁for ▁ 1 0 0 , 0 0 0 ▁fro zen ▁car c ass es ▁of ▁m utton ▁in ▁ ▁of ▁re fr iger ated ▁space . ▁Each ▁ship ▁also ▁had ▁one ▁cargo ▁hold ▁which ▁was ▁spe cially ▁designed ▁for ▁the ▁transport ▁of ▁up ▁to ▁ 2