XEROX of SIMPLE EXPLANATION OF OSTWALD COLOUR SYSTEM & COLOUR SCIENCE Part 1

Xerox of TWO rare to find books bounded together under one cover:

1) A SIMPLE EXPLANATION OF THE OSTWALD COLOUR SYSTEM
With Diagrams and Illustrations of the Colour Wheel
By J. Scott Taylor, M.A.
WINSOR & NEWTON LTD., London, MCMXXXV (1935), First Edition, 52 pages, illustrated
&
2) COLOUR SCIENCE: A handbook for advanced students in schools, colleges, and the various arts, crafts, and industries depending on the use of colour, Part 1 by Wilhelm Ostwald
Authorized translation with an introduction and notes by J. Scott Taylor
WINSOR & NEWTON LTD., London, no year (1933), First Edition, xviii+141 pages, illustrated

Paperback is in very good condition, lightly worn back cover edges, light stains at back cover, some pages have neat red ink & orange marker underlining and notes, the rest of the text is clean, one half-page is detached, tight binding, please see photos

One half-page with Fig.11 is detached, not sure where is belongs, because first book has only 6 Plates, and second book has it's own Fig.11

8 1/4 x 11 3/4 x 9/16 inches