Un traité sur les gravures de bois : historique et pratique . lampe. Cela consiste à inremplir un grand globe en verre transparent avec de l'eau claire, et à placer itin de telle manière entre la lampe et le travailleur que la lumière, après avoir traversé le globe, peut tomber directement sur le bloc, dans le themanner représenté dans la coupe suivante. La hauteur de la lampe peut être béragée en fonction de la commodité des graveurs, en conséquence de son déplacement sur la pièce droite de fer ou autre métal qui forme le support. La ligne pointillée indique la direction de la lumière lorsque l'éclairage est relevé à la hauteur

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A treatise on wood engravings : historical and practical . lamp. This consists infilling a large transparent glass-globe with clear water, and placing itin such a manner between the lamp and the workman that the light, after passing through the globe, may fall directly on the block, in themanner represented in the following cut. The height of the lamp can beregulated according to the engravers convenience, in consequence of itsbeing moveable on the upright piece of iron or other metal which formsits support. The dotted line shows the direction of the light when thelamp is elevated to the height here seen ; by lowering the lamp a Papillons description of a mentonniere is previously noticed at page 4(j5. THE PEACTICE OF WOOD ENGEAVING. 575 little more, the dotted line would incline more to a horizontal direction, and enable the engraver to sit at a greater distance. By the use ofthose globes one lamp will suffice for three or four persons, and eachperson have a much clearer and cooler light than if he had a lampwithout a globe solely to himself.*. SANDBAG AND BLOCK. GLOBE. It has been said, and with some appearance of truth, that the bestengravers use the fewest tools; but this, like many other sayings of asimilar kind, does not generally hold good. He undoubtedly ought to beconsidered the best engraver who executes his work in the hest mannerwith the fewest tools; while it is no less certain that he is a badengraver who executes his work badly, whether he use many or few. Nowood engraver who understands his art will incumber his desk or tablewith a number of useless tools, though, from a regard to his own time, he will take care that he has as many as are necessary. There are somewho pride themselves upon executing a great variety of work with one * Papillon preferred o- kind of bulls-eye lens—loupe—of about three and a half inchesdiameter, flat on one side and convex on the other, to a globe filled with water—un local—for the purpose of bringing the light of th

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