David Jeffries

A treatise on diamonds and pearls

1750

A treatise on diamonds and pearls. In which their importance is considered: and plain rules are exhibited for ascertaining the value of both; and the true method of manufacturing diamonds

Traité des diamants et des perles, où l'on considère leur importance, on établit des régles certaines pour en connoître la juste valeur, et l'on donne la vraie méthode de les tailler. On y trouve aussi des observations curieuses, ègalement utiles aux négociants, & aux voyageurs, & qui intéressent même la politique

Governments and Tourism

Ancient Greece

A Treatise on Diamonds and Pearls : In Which Their Importance is Considered

A Treatise on Diamonds and Pearls. In Which Their Importance is Considered : And Plain Rules are Exhibited for Ascertaining the Value of Both

The world of the future

Multicultural Folk Tales Thematic Unit

Training for total quality management

Future Cities

Training for Tqm