The sea-mans alphabet and primer, with syntagma naucleri. Also, to find the difference of longitude by cœlestiall observation onely [electronic resource] : with other mathematicall knowledge for the better perfecting of young sea-men in the art of navigation, viz. in all the parts of arithmetique and geometry, the doctrine of the sphæriques, and of right-lined triangles, more amply then is yet published in English. Precepts astronomicall, statique, and of meteorologie for navigation needfull; with the uses of the spheare, globes, and all other instruments necessary the making of evidences, and writings; bills of sale, charter-parties, surveying, fortification, de re militari. By J.S. notary publique.