"Aeneas parted from Dido, though she tried every allurement and persuasion to detain him." —Bulfinch, 1897

Dido parting with Aeneas

"Aeneas parted from Dido, though she tried every allurement and persuasion to detain him." —Bulfinch,…

"Part of Park Front of Bridgewater House." — Chambers, 1881

Bridgewater House

"Part of Park Front of Bridgewater House." — Chambers, 1881

Telegraph cable laid at the bottom of the ocean or through festoons, allowing for gradual setting.

Telegraph Cable

Telegraph cable laid at the bottom of the ocean or through festoons, allowing for gradual setting.

Illustration of of construction of a radius when given only a part of the circumference.

Construction of Radius When Given Only a Part of the Circumference

Illustration of of construction of a radius when given only a part of the circumference.

Illustration of of construction of a radius when given only a part of the circumference.

Construction of Radius When Given Only a Part of the Circumference

Illustration of of construction of a radius when given only a part of the circumference.

A diagram that shows the details and housing of a Dixie Interrupter.

Dixie Interrupter

A diagram that shows the details and housing of a Dixie Interrupter.

An illustration of a centered hair part.

Hair Part

An illustration of a centered hair part.

An illustration of a straight line with 5 points dividing it into 4 equal parts. Multiple of a given line.

Straight Line With Points Divided Into Equal Parts

An illustration of a straight line with 5 points dividing it into 4 equal parts. Multiple of a given…

Illustration showing that when three or more parallel lines intercept equal parts on one transversal, they intercept equal parts on every transversal.

Parallel Lines Cut By A Transversal

Illustration showing that when three or more parallel lines intercept equal parts on one transversal,…

This lock mechanism was improved for security allowing a two section stop where the key locks both directions.

Lock Mechanism

This lock mechanism was improved for security allowing a two section stop where the key locks both directions.

"Party per fess, engrailed, argent and gules. PARTY PER FESS. A shield parted in the centre by an horizontal line through the fess point." -Hall, 1862

Party Per Fess Engrailed

"Party per fess, engrailed, argent and gules. PARTY PER FESS. A shield parted in the centre by an horizontal…

"With the right hand raise and throw the piece diagonally across the body, grasp it smartly with both hands, the right, palm down, at the small of the stock, the left, palm up, at the balance; barrel up, sloping to the left and crossing opposite the junction of the neck with the left shoulder." — Moss, 1914

Port arms

"With the right hand raise and throw the piece diagonally across the body, grasp it smartly with both…

"Section and part elevation of a raking shore."—Finley, 1917

Raking shore

"Section and part elevation of a raking shore."—Finley, 1917

This steam valve design features revolving cup valves which are able to cut off steam at any given revolution inside an engine.

Steam Valve

This steam valve design features revolving cup valves which are able to cut off steam at any given revolution…