Euclid's Elements of Geometry, the First Six Books

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. As to the manner in which this work has been executed; the figures, instead of being in plates, are on the page with the mat ter of the work, this being found by experience to be by far the best mode.