Smith, Thomas [Hrsg.]: The Art Of Drawing In Its Various Branches: Exemplified In A Course Of Twenty-Eight progressive Lessons, Calculated To Afford Those Who Are Unacquainted With The Art, The Means Of Acquiring A Competent Knowledge Without The Aid Of A Master ; Being The Only Work Of The Kind In Which The Principles Of Effect Are Explained In A Clear, Methodical, And At The Same Time Familiar Style. Illustrated With Coloured Designs And Numerous Wood Engravings (London, 1827)

PERSPECTIVE.

13

LESSON VIII.

To draw a House in oblique Perspective.

Let A B be the base line, C D the horizontal line,
and E the centre of the picture, from which draw the
perpendicular line E X equal to the length of the picture.

K

From «, the nearest corner of the house, draw the
vanishing line a D for the bottom of that side of the
house; continue this line till it touch the base line in
the point 1, from which erect the perpendicular line
1 b, and mark off upon it, the distance from 1 to c
equal to the actual height of the house ; draw the
vanishing line c D for the top of the house, and
then between the lines 1 D, c D, from the point a
draw the line a d, wdiich will give the apparent height of
the coiner of the house. To find the vanishing point