Then as I came to it, I had to consider that the raised hoof should be latitudinally opposite the point of the knee of the standing leg, and to imitate the harbour-like form at C enclosed between these legs. And in the same Fig- 1 way I had to fix the shape between the off hind and standing leg, in its proportion and relative position to the harbour(C).
I looked up and down the cast continually to make each \"Point\" fall into its place under or over another already indicated, and then laterally across it with a similar object.
I compared the slanting lines with the set square of the book behind, and so on, and saw by the aid of a hand-glass-which is absolutely indispensable to the draughtsman-”that the proportion of my black masses, the direction of my lines, and in fact the whole drawing, tallied fairly with the cast.
These are just a few of the things upon which I had to fix my attention, but at the same time and almost unconsciously, my eye was taking in
all the internal drawing. I knew that every part must fit and, by indicating the various masses contained within the outline of the horse, prove the accuracy of the whole.