Mass. Gen. Laws ch. 36, § 15

He shall record all instruments upon the pages of the record books in fair and legible handwriting or in print, and in continuous successive lines, and shall note on the record, before attesting the same, all erasures and interlineations and the value of any stamp affixed thereto pursuant to federal law, and the cancellation thereof, and he shall make duplicate microphotographic process copies of all books in his registry in which deeds, certificates of title and other instruments have been recorded or entered.