Appendix 4 comprises one page with 8 images in two columns of four images.
First image left column consists of a lamb's head with the teeth exposed
by human hands holding back the animal's lips. Under the image is the word
"lamb."
To the right of the first image is a top view drawing of a sheep's jaw with
the teeth numbered and captions for "'median line" pointing to
the centre of the palate and the word "Lamb."
Second image left column consists of a lamb's head with the teeth
exposed by human hands holding back the animal's lips with the caption
"Two Tooth (1-2 years old) two permanent incisors"
To the right of the second image is a top view drawing of a sheep's jaw
with the teeth numbered and the caption "Age 1-1½ years
old".
Third image left column consists of a lamb's head with the teeth exposed
by human hands holding back the animal's lips with the caption "2-3
years old".
To the right of the third image is a top view drawing of a sheep's jaw with
the teeth numbered and the caption " Age 2-2½ years"
Fourth image left column consists of a lamb's head with the teeth
exposed by human hands holding back the animal's lips with the caption
"3-4 years old".
To the right of the fourth image is a top view drawing of a sheep's jaw
with the teeth numbered and the caption "Age 3-3½ years".