311 



with higher specitic rotations have been isolated, and Kraemer (Amer. Chem. 

 Journ., 17, 692) records a freshly distilled limonene which had a specific rotation 



121-3°. 



A small amount of a phenolic body was isolated from the higher boiling 

 portion of the oil, and this gave strong indications for carvacrol, but it could 

 not be separated in sufficient quantity to determine it with accuracy. 



IV. TIMBER. 



{a) Economic. 



The wood when freshly cut is pale reddish in colour, but becomes Lighter 

 on exposure. It is open and straight in the grain, light in weight, easy to work, 

 and is not unlike the American "Redwood" {Sequoia sempervirens), both in 

 general characters and texture. 



It is in good repute for durability in Tasmania and is suitable for cabinet 

 work, coachbuilding, and many other purposes, and possesses far more toughness 

 and strength than its lightness would lead one to suppose. It is, according to 

 A. O. Green, used for making sculls and oars. 



Transverse Tests of Timber, Atlirotaxis selaginoides. 

 (Standard size, 38 in. x 3 in. x 3 in.) 



Size of specimen in inches 

 Area of cross section, square inches ... 

 Breaking load, lb. per square inch 

 Modulus of rupture in lb. per square inch 



,, elasticity ,, ' ,. 



Rate of load in lb. per minute 



No. I. 



No. 



B 2-96 



; D 2-96 



876 



2,620 



5458 



810,000 



238 



B3-00; D3 



9 -00 



2,580 



5,160 



822,857 



215 



00 





N 



3. 3. 



B 



2-95 



; D 2-98 



879 



3,000 



6,230 



845,217 



375 



(h) Anatomy. 

 The characteristic feature in this direction for this Conifer is the almost entire 

 absence of the manganese com.pound m any of the tracheids that go to make up 

 the wood substance, and in a radial section the medullary cells are seen to be 

 quite devoid of such product, and it is only now and again that a trace is found 

 in a lumen of the xylem, as in Figure 227. 



The pitted cells are almost rudimentary and not easily detected, while 

 the simple pits of the medullary rays are both numerous and well defined, there 

 being generally two or three between the rays and the tracheids. The autumn 

 tracheids have very narrow lumina, and only a few cells wide in the circle (Figures 

 226-228). 



