Its discussion may be found in any work on theoretical astronomy.
Other schools are the school of naval medicine at Bordeaux with annexes at Toulon, Brest and Rochefort; schools of torpedoes and mines and of gunnery at Toulon, &c., &c. The coles dhydro graphic established at various ports are for theoretical training for the higher grades of the merchant service.
Ricardo's works, in fact, do not explain a theoretical system, but contain the matured reflections, more or less closely reasoned, of a man of great mental power looking out on the world as it appeared to a business man experienced in affairs.
Berthollet's theoretical views regarding the composition of the metallic oxides, and he also showed Berthollet's "zoonic acid" to be impure acetic acid (1802); but Berthollet (q.v.), so far from resenting these corrections from a younger man, invited him to become a member of the Societe d'Arcueil.
The works of the ancient Greek geographers were translated into Arabic, and starting with a sound basis of theoretical knowledge, exploration once more made progress.