ABSTRACTS. 



•223 



Impatiens grandiflora {Crard. Chron. p. 110; fig. 47; 16 2 1901). 



— Introduced in 1900 by ^Ir. Warpur from Madagascar. — G. S. S, 



Imports of Agricultural Produce. Anon (Jour. Bd. Agri. 

 vol. vii. No. 4, pp. 462-470). — This article deals with imports of live 

 animals (for food) and dead meat, dairy produce, horses, poultry, grain, 

 and flour. The following figures are taken from the Table of Imports of 

 Vegetable Produce : 



Description 



Quantities ^ 



Values 



1899 



1900 



1899 



19(H) 









£ 



"£ 



Onions .... bush. 



7,018,299 



7.082,334 



845,752 



853,903 



Potatos .... cwts. 



5,159,011 



8,903,534 



1,577,726 



2,2.32,342 



Vegetables unenumerated (in- 











cluding Tomatos) 



- 





1,744,558 



1,557,733 



bush. 



cvrts. 







Apples 



3,861,172 



2,128,477 



1.186,143 



1.224.655 



Pears ..... 



571,832 



476,908 



266,351 



366,871 



Plums 



558,273 



423,019 



294,052 



.392,696 



Cherries .... 



281,236 



242,505 



153,642 



308,395 



B.N. 



Increase, Two Opposing* Factors of. By Prof. J. C. Arthur 



{Bull. Bot. Dep. Jam. February 1901). — After describing the ant- 

 agonistic powers of a plant's "vegetative and " reproductive " energies, 

 the author generalises that '* a decrease in nutrition during the period of 

 growth of an organism favours the development of the reproducti^■e parts, 

 while abridging the vegetative parts." Conversely, "An increase in 

 nutrition favours the vegetative parts, while abridging the reproductive 

 parts is equally true." He then discusses the respective values of small 

 and large seeds. The result being that not only do larger seeds produce 

 more stem and foliage, but a proportionally greater increase in the fruit. 

 Thus 188 grams each of large, medium, and small peas were so^^•n upon 

 equal-sized plots of ground ; and although there were twice as many 

 small seeds as large, and nearly one and a half as many medium seeds as 

 large, still the harvest was greatly in favour of the larger seeds, both per 

 acre and per plant. The author's second generalisation is, therefore, as 

 follows : — " Large seeds give rise to plants with a greater development of 

 the reproductive parts and less of vegetative parts than small seeds do." 

 He adds that these results become not only acquired but inherited. 

 Interesting tables follow giving statistical details. — G. H. 



Injurious Insects. Report of Entomologist (Dr. J. B. Smith) to 

 the New Jersey Agric. Coll. Exp. St. (four plates and several other illus- 

 trations ; October. 1900). — General outline of year's work, with detailed 

 descriptions of spraying operations. An interesting account of a European 

 trip made in the interests of economic entomology is also given in the 

 Report.— Z>. H. 



Insecticides. By S. (Garden, p. 286 ; 20/4/1901).— Useful 

 formulae are given and the best insecticides recommended. — H. J. C. 



