368 R. T. BAKER. 
Transverse Tests,— No.l. (No. 2! No. 3. 
Breaking load... ee ht 9,760 + 9,440 9,660 
Modulus of rupture in ibs.persq.in. 19,520 18,880 19,320 
Modulus of elasticity __,, » 2,964,705 2,677,640 2,734,177 
Rate of load in tbs. per minute ... 813 944 805 
Weight.—62 tbs. per cubic foot. 
(b) Microscopical. 
Transverse Section.—A very beautiful figure is obtained 
from this section when stained with malachite green. The 
rays form attractive green bands across the fields of vary- 
ing thickness according to the number of cells, many of 
which contain a deposit in amorphous form or spherical. 
Between these occur wood parenchyma, fibre and vessels, 
the first two arranged in concentric loops, concave always 
towards the bark. The fibres occupy by far the biggest 
area, being only separated by the narrow band of wood 
parenchyma, one, two or three cells wide. The walls of 
the fibres are very thick, and so only a very small lumen 
obtains; the cell walls are not numerous. The wood 
parenchyma cells have the long axis in some few instances 
in the arc of their disposition, and are almost all filled witha 
coloured deposit, which makes them still more conspicuous. 
The vessels are irregularly distributed throughout. 
Radial Section.—A section of this face shows clear of the . 
rays arather regular structure, the columns of fibres alter- 
nating with the parenchyma and vessels. The rays, 
especially the multiseriate ones, are very pronounced, and 
show globular and amorphous cell contents, the former 
occurring also in the cells of the wood parenchyma and in 
the vessels, the only species in which they were so found 
in the latter. Silica was also detected. 
Tangential Section.—The compact mass of fibres and spindle 
shaped end-on view of the large and small rays, with their 
varied cell contents are characteristics of this view. 
