Scientia Sinica

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EXPLANATION OF PLATE IV

Photomicrograph of a specimen taken 32 hours after a wound was made. A and B, showing the boundary between the original and the new epidermis. :

Fixative: Susa, Staining: H. E., Eyepiece: X 8, Objective: X 10.

Photomicrograph of A in the above figure, showing that the new epidermis is thicker than the original, mitotic figures in the new epidermis, and the transection of the collagenous fibres. Eyepiece: X 8, Objective: XK 45.

Photomicrograph showing that the healed new epidermis is thicker than the original. Fixative: Susa, Staining: H. E., Eyepiece: X 8, Objective: X 10.

Photomicrograph showing that the new epiderniis is thicker than the original. In the rectangle the orientation of the disintegrating leucocytes is along the direction of the growth of the new epidermis.

Fixative: Susa, Staining: H. E., Eyepiece: X 8, Objective: XX 45.