. The American educator; completely remodelled and rewritten from original text of the New practical reference library, with new plans and additional material. wers, is filled with pil-grims, who increase the population by about100,000. This pilgrimage is the only sourceof wealth and occupation to the inhabitantsof Mecca. Population, about 60,000. MECHANICAL, me kanik al, POWERS,the simple machines or some parts of themon which every machine, however compli-cated, must be constructed. These simplemachines are the lever, the wheel and axle,the pulley, the inclined plane, the wedge andthe screw.
. The American educator; completely remodelled and rewritten from original text of the New practical reference library, with new plans and additional material. wers, is filled with pil-grims, who increase the population by about100,000. This pilgrimage is the only sourceof wealth and occupation to the inhabitantsof Mecca. Population, about 60,000. MECHANICAL, me kanik al, POWERS,the simple machines or some parts of themon which every machine, however compli-cated, must be constructed. These simplemachines are the lever, the wheel and axle,the pulley, the inclined plane, the wedge andthe screw. Each is described under its titlein these volumes. MECHANICS, me kaniks, the term origi-nally used to denote the general principlesinvolved in the constiniction of the term became separated from alldirect connection with practical applications,and it now deals entirely with abstract ques-tions in which the laws of force and motionare involved. In this sense, mechanics is usu-ally divided into dynamics, which treats of MECHANICSVILLE 2290 MEDICAL SCHOOLS moving bodies and the forces which producetheii motion, and statics, which treats of. Inclined plane Wedge Screw THE SIX MECHANICAL. POWERSforces compelling bodies to remain at Dynamics ; Statics. MECHANICSVILLE, Battle of, a battlefought at Mechaniesville, seven miles fromRichmond, Va., June 26, 1862, between aFederal force of about 5,000, commanded byGeneral Fitz John Porter, and a Confederateforce of 10,000, under the personal directionof General Robert E. Lee. The Federalswere in a strong position and compelled theConfederates to ojDen the engagement. Twoattacks were repulsed, but on the morning ofJune 27, upon the arrival of General Stone-wall Jackson with Confederate reenforce-ments, General Porter retreated to a strongerposition at Gainess Mill. The loss of theConfederates was about 2,000, and that ofthe Federals, about 360. The battle openedthe so-called Seven Days Battles of thePeninsula Campai
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