245 



The laevo-rotation of the crude oil is evidently due to a slightly increased 

 amount of the hevo-rotatory limonene over that of the Rylstone sample. 



Crude Oil from the Leaves of CalUtris Tasmanica. 



No. 



Locality and 

 Date. 



1 



Specific 1 Rotation,, 



Gravity ° C. | "d. 



1 



Refractive ^f^'^' ""^ 

 Index ° C. ''°'l!"°t.^ 



Ester in cold Yield per 

 per cent. cent. 



I 



Glen Regis. N.S.W., 

 27305 



0-9036 



@ 22" 



+ 1-0° 



1-4738 

 @25" 



59-95 



59-91 0-14 



Swansea. Tasmania, 

 3 6 08 



0-8976 

 @i5' 



1-4739 

 @i5^ 



62-75 



0-208 



IV. TIMBER. 



(a) Economic. 

 The timber is yellowish-brown, not unlike that of C. gracilis. 



Transverse Tests of the Timber of CalUtris Tasmanica, of standard size. 



(38 in. X 3 in. X 3 in.) 





No. I. 



No. 2. 



No. 3. 



Size of specimen in inches 



B 3-00; D 3-00 



B 2-94 ; D 2-95 



B .3-00; D 3-00 



Area of cross-section, square inches 



9 -00 



8-67 



9-00 



Breaking load, in lb 



5.690 



4,200 



4,000 



Modulus of rupture in lb. per square inch . . . 



11,380 



9.257 



8,000 



,, elasticity „ 



1.515.789 



2,120,727 



1,440,000 



Rate of load in lb. per minute 



711 



600 



500 



(b) Anatomy. 



The medullary rays are specially numerous in this timber, and range in 

 height from two to twenty cells or even more ; they are all of a parenchymatous 

 character and mostly devoid of the brown manganese compound contents — a 

 substance that is, however, fairly well scattered throughout the prosenchymatous 

 tracheids of the xylem. 



