272 



JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



fruits up to a certain point, though the total number was not materially 

 increased, and certain fertilizers (as acid phosphate without lime) have 

 a decidedly deleterious effect upon the plants and lessen the quantity of 

 fruit produced. 



Increasing the fertilizer slightly increases the sugar content, and 

 very slightly decreases the acid. 



Large fruits contain more sugar than small and less acid. — C. H. L. 



Pineapples, Experiments on Preparation of Sugrared, Dried. 



By H. 0. Gore {U.S.A. Dep. Agr., Bur. Chem., Circ. 57; May 1910). 

 The principal fact deduced from these experiments is that sliced pine- 

 apples, when dried and sugared, yield a very palatable product of fine- 

 keeping quality. Sliced pineapples allowed to stand in contact with 

 sugar form much syrup. It is therefore better to allow partly dried 

 slices to stand in contact with about 12 per cent, of their weight of 

 sugar for six to eighteen hours. The slices are then re-dried until 

 fairly firm but still sticky. 



The Eed Spanish variety darkens with keeping more than the 

 Smooth Cayenne. This can be to some extent prevented by cold 



storage. — C. H. L. \ 



j 



Pinus Armandii {Bot. Mag. tab. 8347). — Nat. ord. Coniferae; j 

 tribe Ahietineae. S.-W, China. Tree, 60 feet high; leaves in tufts of ; 

 fives, slender, 4-6 inches long, under |-line wide ; male catkins cylindric, 

 yellow cones, obtuse, 4-7 inches long, scales rhomboid, the tip 

 recurved. — G. H. 



Plant Culture under Calico. By W. J. Belderson {Card. Mag., 

 No. 2945, April 9, 1910, pp. 283). — The writer explains in detail how 

 calico stretched over a framework of wood can be used in a variety of 

 ways in a garden. 



Chrysanthemums are grown under such structures with great 

 success, the erections being placed over the plants as they grow in 

 beds. 



In spring calico -houses are used for half-hardy seedlings and 

 pricking out, affording protection from frost, cutting winds, and heavy 

 rain. Beds of bulbs can he forced with great success. — E. B. 



Plant Diseases, Notes on New York (I.) By F. C. Stewart 

 {U.S.A. Exp. Stn., New York, Bull. 328; December 1910; figs.).— 

 A large number of plant diseases are briefly referred to in this bulletin, 

 including the following of horticultural interest. 



Apple. — Bitter rot, Glomerella rufomaculans , is of no economic ( 

 importance in New York, statements to the contrary being erroneous. | 



Crown Gall, Bacterium tiimefaciens, is common, but in twelve j 

 years' experience the a^uthor has never seen or known of a w^ell- I 

 authenticated instance of crown gall injuring an apple. 



Leaf spot is frequent, but the authors appear to regard the fungus, ' 



