Mbiziia procera 

 Flacourtia Cataphracta 



Pterospermum aceri folium 



—I 



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Dalbergia latifolia 



/^VW-WVVWVVVW v vA/^ 



Dalbergia Oliveri 



Holoptelea integrifolia 



Mallotus pbilippinensis 



20' 



10° 







10° 

 20° 



Chloroxylon Swietenia 



1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 



' i I i l i I i I i l i l i i i i i i i i i i i i i l i i i i i i ■ i i i 



Degree scale and centimetre scale for all the figures 



Fig. 1. Outline of a radial fracture for each species obtained from a stick an inch broad, 

 sawn transversely off the end of a radial board. 



