ROWLEY RAGG, a genus of stones, belonging to the siliceous class. It is of a dusky or dark grey colour, with many small shining crystals, having a granular texture, and acquiring an ochry crust by exposure to the air. The specific gravity is 2.748. It becomes magnetic by being heated in an open fire. In a strong fire it melts without addition, but with more difficulty than basaltes. It was analysed by Dr Withering, who found that 100 parts of it contain 47.5 of siliceous earth, 32.5 of argil, and 20 of iron.
RAGMAN'S ROLL, Rectius Ragimund's roll, so called from one Ragimund a legate in Scotland, who calling before him all the beneficed clergymen in that kingdom, caused them on oath to give in the true value of their benefices; according to which they were afterwards taxed by the court of Rome; and this roll, among other records, being taken from the Scots by Edward I. was redelivered to them in the beginning of the reign of Edward III.