144 TRANSACTIONS OF ROYAL SCOTTISH ARBOKICULTURAL SOCIETY. 



Grant for an account of the forests in Tanganyika, while Mr 

 Edward Beck writes on the pulp and paper industry of 

 Canada, and Mr N. V. Brasnett on the control of forest fires 

 in Kenya's cedar forests. 



Editorial notes cover a large variety of subjects. An appeal 

 is made to members of the Forest Services of the Empire, and 

 others who make forestry their profession, to join the Empire 

 Forestry Association as Professional Members, the annual 

 subscription being only los. 6d. The origin, scope and 

 character of the Imperial Forestry Institute, which has just 

 been opened at Oxford, are described in a brief article, and 

 current events are reviewed. 



NOTES AND QUERIES. 



Artificial Manures : Record of Nursery Experiments. 



In the early spring of 1924 it seemed probable that it might 

 be of some interest to experiment with the application of artificial 

 manures to seedlings and 2-year transplants in the nursery, as in 

 such small areas the cost would be very trifling, and if stronger 

 growth resulted it would be advantageous. Messrs Robert 

 Rough & Sons of Broxburn very kindly supplied the following 

 manures gratis : — 



1. Sulphate of Ammonia — about 25J % ammonia (NH3). 



2. Superphosphate — 30 % soluble phosphate of lime. 



3. Fermented Bone Meal. 



4. Nitrate of Soda — 95 % purity containing 15 % nitrogen = 



about 18 % ammonia. 



5. Muriate of Potash — 80 % purity containing 50% potash 



(K,0). 



6. Kainit — 12'4% potash — possibly more. 



7. Potash Manure Salts — 30 % potash (in the form of 



chloride). 



These manures were applied to 2-year seedling Japanese 

 larch after lining out, and to seedling Thuya gigantea at the 

 rate of 2 oz. to the sq. yard. 



The beds were carefully watched throughout the growing 



