On Divers Arts

Theophilus, On Divers Arts, John G. Hawthorne and Cyril Stanley Smith, translators (Dover, New York, 1979), pp. 40-41. 

Theophilus. (1963). On divers arts. University of Chicago Press. 

TH NARD (1803-4) Thenard, L. Sur les couleurs, suivie d un procede pour preparer line couleure blene aussi belle que I outremer Journal des Mines, 15 (1803 ) 128-136 Theophilus (c. 12th cent/Hawthorne Smith 1963) Theophilus Theophilus. On Divers Arts Translated with notes by J.G. Hawfliome C.S. Smith (1963)... 

On Divers Arts The Treatise of Theophilis , The Chigaco University Press, Chicago, 1963,39 and Theophilus, De Diversis Artibus, Book I, Chapter 23, translated in English by J. G. Hawthorne and C. S. 

We have great lakes, both salt and fresh, whereof we have use for the fish and fowl. We use them also for burials of some natural bodies, for we find a difference in things buried in earth, or in air below the earth, and things buried in water. We have also pools, of which some do strain fresh water out of salt, and others by art do turn fresh water into salt. We have also some rocks in the midst of the sea, and some bays upon the shore for some works, wherein are required the air and vapor of the sea. We have likewise violent streams and cataracts, which serve us for many motions and likewise engines for multiplying and enforcing of winds to set also on divers motions. 

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