Chapter II: ENGINEERING AND MECHANICS.--Bietrix's Vertical and

Compound Engine.--With description and numerous figures 6439

Improved Gas Engine.--With engraving 6440

Meters for Power and Electricity. By M. C. VERNON BOYS.--A
valuable and instructive paper.--Showing the object of
meters, the way in which some of them are made, and their
manner of operating.--Several figures 6440

Raising and Moving Masonry Buildings.--With full page of
engravings, illustrating various examples of large buildings
composed of masonry that have been moved and raised 6443