204 Ewart and Mason-J ones. — Red Wood in Conifers. 
NOTES ON FIGURES IN PLATE XV. 
Illustrating Messrs. Ewart and Mason-Jones’s paper on Red Wood in Conifers. 
Fig. i. Main axis of Cupressus Lawsoniana. Red wood very thick at under surface of top of 
curve, change from one side to the other well shown ; the dotted line indicates here, as in all other 
figures, the distribution of the red wood on the back face of the stem. 
As shown in the figure, the straight part of the stem grew slightly out of the perpendicular, 
also with a slight tilt away from the plane of the paper. 
Fig. 2. Lateral branch of Cupressus nutkaensis. The upper branch and the thin twigs shown 
were dead. 
This was a very good specimen, inasmuch as gravitational stimulation was practically at its 
maximum. 
The entire absence of red wood from the region of greatest compression is well shown. 
Fig. 3. Lateral branch of Cupressus nutkaensis shaded from above ; peculiarities in distribution 
of red wood are mentioned in the text. 
Fig. 4. Lateral branch of the same tree as Fig. 3 and under similar conditions of shade. 
Fig. 5. Main axis and top branches of Pinus contort a. Peculiarities of distribution of red wood 
are given in the text ; the main branches were bent and grew in .planes practically at right angles to 
one another. 
Fig. 6. Main stem of Pinus Cembra. In this specimen the pigment in the red tracheides is not 
as strong as in those of the other specimens used, so the stem had to be continually wetted with tap 
water in order to bring out the colour differentiation of the red and white woods. 
