Note 1 — Chapter II · (continued 4)
Reading edition
: The information about the prices of Blaeu's general Atlas in 1650 and his special Atlas of the two Belgiums in the same year is from a curious letter in the Correspondence of the Earls of Ancram and Lothian, edited for the Marquis of Lothian, in 1875, by Mr. David Laing (II. 256).