horizontal arm and a pit- man by a disk crank keyed upon the main drive shaft at the rear of machine. The amount of said lateral vibration or oscillation is determined by an adjustable connection between the rear arm of the rock shaft and the rear pitman. The proper tension in the saw blades is… … The Grafting of Living Tissues. SCHMIDT’S ELECTRIC LAMP HANGER. The German biologist Dr. Born has been grafting portions of one tadpole on another. The subject has tion. Toraise the lamp, it is pulled slightly down- cover and so keeps the papers free from dust instead of been treated facetiously by…
Internet Archive · Public domain (published before 1931). Free to use for anything.
