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[[image]]  No.1
which is above the eye, and then we see the under side of the object 

horizon [[image]] line
2

3
[[image]]
at number 2 it is directly it front of the eye and the edge only is seen.

at number 3, it is below the eye, and the lines run upward wise to meet the horizon line, [[strikethrough]] and [[/strikethrough]] the top of the object is therefore seen.

- a square form, or a long continuous passage or square cube if view directly before the eye. will present the 3 combined, and appear thus

[[image]] or thus [[image]] according to its length.. or the distance of the furthermost opening or object that may rise to intercept the eye, all objects diminishing as they depart from or a distant from the spectator, a combination of squares [[strikethrough]] planes [[/strikethrough]] or tesselated pavement, which is a combination of figures - and for our purpose presumed to be of equal size will when viewed [[strikethrough]] on a plain [[/strikethrough]] in perspective present the following appearance    

[[image]]

the breadth of the squares being determined by the diagonal lines extending to the point of distance, and the farther that is removed the more [[lesal?]] will the [[strikethrough]] surface [[/strikethrough]] work appear - Now it is very evident that the eye will not embrace these appearances and principles conically at first sight, or without education, for if an individual not conversant in such matters - a novice - he will on making an effort to represent such objects, make all the squares of one size, or expect the distant apperture on the tube or passage represented above to be as large as the first opening, and wonder why his work does not look right, well knowing that his position is founded on the fact, - altho it is equaly well known that no such appearance is presented to his eye.-

The circle or repetition of circles is in like manner influenced and changed in appearance as the square - as in the example - under some aspects it becomes an [[strikethrough]] [[?]] and the same where [[/strikethrough]] 
viewed vertically - as a [[strikethrough]] ?? [[/strikethrough]] To test this a book may be held before the spectator and should be found. 

Transcription Notes:
The bottom 3 lines with additional text between lines are being difficult to place in some order. The bottom lines are incomplete.