Consequently relatively few assayer
bars have survived to the present day, and the remaining examples are nearly all of small size, a few ounces or less in weight.
Concerning the controversy over comets, Giovanni Ciampoli wrote about Galileo's Assayer
that "I, who understand little, can admire it better than argue about it"--and thus, according to Biagioli, "tended not to commit himself about the truth-value of Galileo's empirical claims.
Fourcroy 1806 Elected to L'Institut de France 1809 Named Professor of Chemistry at L'Ecole Polytechnique, Paris 1809 Appointed Professor of Physics at La Sorbonne, Paris 1809 Became Editor of the Journal Annales de chimie 1818 Named Superintendent of the French Government Gun Powder Factory 1829 Appointed Chief Assayer
of the Paris Mint 1832 Named Professor of Chemistry at Jardin des Plantes, Paris 1839 Raised to the dignity of a Peer of France
Major Works: The Sidereal Messenger (1610), The Assayer
(1623), Dialogue on the Two Great World Systems (1632), Discourses on Two New Sciences (1638)
The mine refiner and assayer
are intimately involved in producing the dore bullion, and it is likely that they will have some valuable suggestions regarding the remelt procedures.
Instead of making readers equal to observers, Galileo's conclusions in The Assayer
thus effectively problemarize the position of both observers and readers.
He obtained a job as assayer
at the Colorado Smelting Co.
Varennes de Beost's collection had become famous as early as 1757, when he resided in Dijon, and was further enlarged by the acquisition of the collections of Savalete de Bucheley (one of the farmers-general under Louis XV) in 1764 and Jean Hellot (16851766), chemist and chief assayer
for the French mint, in 1766.
After graduating from Rutgers University, he worked as an assayer
, chemist, and metallurgist in the gold mills of South Dakota's Black Hills and in Colorado.
In addition to a directly methodological indebtedness, one might suggest that Descartes would have found resonances with the 1619 experience discussed in this essay in a passage like the following, from Galileo's The Assayer
(1623): "that [philosopher] will indeed be fortunate who, led by some unusual inner light, can turn from dark and confused labyrinths in which he might have gone perpetually winding with the crowd" (Galileo, 240).
When his mother died in 1764 his father took him out of school and gave him the position of Huttenschreiber (a combination of bookkeeper, secretary, assayer
and payroll clerk) at the ironworks, where he remained in his father's service for another five years.