piece represented is of wood; shade-lines
being regular or irregular 90

CHAPTER V.

MARKING DIMENSIONS.

Examples in marking dimensions 91

CHAPTER VI.

THE ARRANGEMENT OF DIFFERENT VIEWS.

The different views of a mechanical drawing; elevation; plan; general
view; a figure to represent a solid cylinder 94

To represent the different sides of a cube; the use of a cross to denote a
square 95

A triangular piece requires two or three views 96

To represent a ring having hexagon cross section; examples; a rectangular
piece in two views 98

The position of the piece when in its place determines the name of the
view in the drawing 103

View of a lever 105

Best method of projecting one view from another; the two systems of
different views of a piece 106

CHAPTER VII.

EXAMPLES IN BOLTS, NUTS AND POLYGONS.

To represent the thread of a small screw 112

A bolt with a hexagon head 113

United States standard sizes for forged or unfinished bolts and nuts 116

The basis of the Franklin Institute or United States standard for bolts
and nuts; hexagonal or hexagon heads of bolts 118

Comparison of hexagon and square heads of bolts; chamfers 120

Without chamfer; best plan for view of both square and hexagon heads 123

Drawing different views of hexagon heads 125

To draw a square-headed bolt; to draw the end view of a hexagon head 125

Use of the triangle to divide circles 129

Scales giving the length of the sides of polygons 135

To find what a square body which measures one inch on each side measures
across the corners; to find what diameter a cylindrical piece of
wood must be turned to which is to be squared, and each side of which
square must measure an inch 136

To find a radius across corners of a hexagon or a six sided figure, the
length of a side being an inch