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Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK II, INTRODUCTION (search)
Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK VII, INTRODUCTION (search)
Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK VII, CHAPTER XI: BLUE. BURNT OCHRE (search)
CHAPTER XI: BLUE. BURNT OCHRE 1. METHODS of making blue were first discovered in Alexandria, and afterwards Vestorius set up the making of it at Puzzuoli. The method of obtaining it from the substances of which it has been found to consist, is strange enough. Sand and the flowers of natron are brayed together so finely that the product is like meal, and copper is grated by means of coarse files over the mixture, like sawdust, to form a conglomerate. Then it is made into balls by rolling it in the hands and thus bound together for drying. The dry balls are put in an earthern jar, and the jars in an oven. As soon as the copper and the sand grow hot and unite under the intensity of the fire, they mutually receive each other's sweat, relinquishing their peculiar qualities, and having lost their properties through the intensity of the fire, they are reduced to a blue colour.
2. Burnt ochre, which is very serviceable in stucco work, is made as follows. A clod of good yellow ochre is heate
Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK IX, CHAPTER I: THE ZODIAC AND THE PLANETS (search)
CHAPTER I: THE ZODIAC AND THE PLANETS 1. IT is due to the divine intelligence and is a very great wonder to all who reflect upon it, that the shadow of a gnomon at the equinox is of one length in Athens, of another in Alexandria, of another in Rome, and not the same at Piacenza, or at other places in the world. Hence drawings for dials are very different from one another, corresponding to differences of situation. This is because the length of the shadow at the equinox is used in constructing the figure of the analemma, in accordance with which the hours are marked to conform to the situation and the shadow of the gnomon. The analemma is a basis for calculation deduced from the course of the sun, and found by observation of the shadow as it increases until the winter solstice. By means of this, through architectural principles and the employment of the compasses, we find out the operation of the sun in the universe.
2. The word “universe” means the general assemblage of all nature, an
Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK IX, CHAPTER VII: THE ANALEMMA AND ITS APPLICATIONS (search)
Vitruvius Pollio, The Ten Books on Architecture (ed. Morris Hicky Morgan), BOOK IX, CHAPTER VIII: SUNDIALS AND WATER CLOCKS (search)
P. Ovidius Naso, Metamorphoses (ed. Arthur Golding), Book 9, line 764 (search)
C. Julius Caesar, Commentaries on the Civil War (ed. William Duncan), CAESAR'S COMMENTARIES of THE CIVIL WAR. , chapter 4 (search)
C. Julius Caesar, Commentaries on the Civil War (ed. William Duncan), CAESAR'S COMMENTARIES of THE CIVIL WAR. , chapter 103 (search)
C. Julius Caesar, Commentaries on the Civil War (ed. William Duncan), CAESAR'S COMMENTARIES of THE CIVIL WAR. , chapter 104 (search)
The king's ministers, who had the care of the government during his
minority, being informed of this, either out of fear, as they afterwards
pretended, lest Pompey should debauch the army, and thereby render himself
master of Alexandria and Egypt; or despising his low condition (as
friends, in bad fortune, often turn enemies), spoke favourably to the
deputies in public, and invited Pompey to court; but privately despatched
Achillas, captain of the king's guards, a man of singular boldness, and to
murder him. They accosted him with an air of frankness, especially
Septimius, who had served under him as a centurion in the war with the
pirates; and inviting him into the boat, treacherously slew him. L. Lentulus
was likewise seized by the king's co