2 
slopes of the Canaries are rarely more than half this size. 
native pine wood was also used extensively for the construction 
of the balconies of the older houses, and all are in an excellent 
state of preservation and frequently most elaborately carved. 
Dr. Perez refers to a paper (not seen by us) on Pinus canariensis 
by F. Albert, the chief of the Forestry eT ee of Chile, where 
the tree is being experimented with and where it is growing 
extremely well. Mr. Albert has studied the olittitite of North 
Africa, and gives preference to Pinus canariensis for the coast 
land, up to an altitude of 4600 ft., from Egypt to Morocco. The 
average annual growth of the trees exceeds 3i-it. and 4 im. 
in diameter, so that in 20 years they would be anything from 
60-90 ft. high, with a diameter of 8-10 in. The trees are 
best planted about 4 ft. apart, or in very dry places a little 
over 3 or this species, like Pinus lying gives a con- 
siderable amount of ground shade. 
A good feature of the tree is that it possesses a straight trunk 
even when grown singly; and in South Africa* it has been demon- 
strated at Fort Cunynghame that it recovers from damage by 
fire in a most striking manner, due probably to its thick heavy 
bark. Dr. Perez records fine examples of the species in Central 
France, and at La Mortola, in Italy, where there is a specimen 
70 ft. high and 73 ft. in circumference. Mueller? says that 
the tree thrives well in Victoria, showing celerity of growth, 
and enduring an occasional shade temperature of 118° F. He 
recommends the species for the lower mountain regions of 
Victoria, which are subjected to moderate but never lengthened 
rosts. 
According to correspondence from Mr. E. Hutchins, 
formerly forest officer in South and British Bast Africa, exotic 
pine trees have so far failed to succeed in the British ae 
African Protectorate, due possibly to the rich humus soil a 
a deficiency of mycorrhiza, for according to Stahlt Gores 
cannot thrive under such conditions. Stahl’s explanation is 
that in humus there is so much competition for the nutritive 
salts that plants with slow transpiration, such as Conifers, are 
unable to absorb sufficient food without “thid co-operation of 
certain fungi as mycorrhiza. In volcanic and sandy soils where 
there is less competition the same kind of plants can obtain the 
necessary food material by means of their own roots and without-—” 
the aid of other a tee _ Mr. Hutchins considers P. canarien- 
abundant in the Western Canaries, i.e., in the islands of La 
Palma, Tenerife, Grand Canary, ‘Gomera‘ind Ha ierro, where the 
winter rainfall is considerable and the soil is voleanic. It is 
recently visited Ponerité for this Sea The tree is most 
Aare of South Africa, Forsatiy Report, 1912, p. 18. 
von Mueller, Suggestions for the Maintenance, Creation, and Enrich- 
rey Forests, 15. 
Stahl in Pringsh. Jahrb. xxxiy. 607 (1900). 
