ANOGEI88US 



543 



The following programme of pollarding and plucking has been adopted 

 tentatively in Central India : 



October, November, December : collection of old leaves, only green leaves 



being suitable. 

 January, February, March : pollarding and collection of twig bark, once 



in three years. 

 April, May, June : collection of sumach (young leaves) once a month ; 



this is the most important crop. 

 July, August, September : continued collection of sumach if drying 



arrangements are possible. 



Rate of growth. The following figures are available of girth measure- 

 ments in sample plots in high forest : 



Anogeissus latifolia : girth increment in high forest sample plots. 



.Some of these figures probably under-estimate the rate of growth actually 

 attainable, since all these plots are in sal forest, and their main object is to 

 estimate the rate of growth of sal ; hence in thinned plots dominant accessoiy 

 species would be cut out, and the increment figures would refer to dominated 

 or suppressed trees. Trees raised from seed sown in 1901 by Mr. Haines in 

 the forest garden at Chaibassa, Chota Nagpur, attained the following dimen- 

 sions in sixteen years : 



The annual rings are tolerably clear. Gamble's specimens gave an average 

 of 7 rings per inch of radius, or a mean annual girth increment of 0-9 in. 

 A cross-section in the silvicultural museum at Dehra Dun, measuring 8 ft. 9 in. 

 in girth without bark, had 176 rings, giving a mean annual girth increment 

 of 0-6 in. 



Measurements of natural saplings in the Panch Mahals, Bombay, recorded 



