lines tangent, and lines secant.--A plaine treatise of the first principles of cosmographie, and spe- cially of the sphaere, representing the shape of the whole world.--A plaine description of Mercator his two globes, that is to say, of the terrestriall globe and of the celestiall globe, and of eyther of them, together with the nost necessary vses thereof A plaine and fall description of Petrus Plancius his vniuersall map, seruing both for sea dna land, and by himeeput forth in «es. 1592.--A very briefe and most plaine description of Master Blagraue his astrobale, which he calleth the Mathematicall iewell.--A new and necessarie treatise of naviga-
tion, containing - the chiefest principles