1. On October 31 , 1846 , Duke of Roxburgh '' again sailed from Port Phillip and reached Gravesend on March 7 , 1847 .
2. On 31 October 1846 , the '' Duke of Roxburgh '' sailed from Gravesend again and arrived in Port Phillip on 7 March 1847 .

Are these two sentences paraphrases of each other?
no