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JOURNAL OF THE ROYAL HORTICULTURAL SOCIETY. 



excreta which are least harmful to wheat. Evidence is accumulating 

 that the excreta of certain plants may also be injurious to others very 

 distantly related in certain cases. — F. J. C. 



Soil tests in Wire Baskets. By B. L. Hartwell and F. R. Pember 

 (C7.-S.i4. Exp. Stn. Bhode L, Bull. 181 ; August 1908).— This bulletin is 

 a continuation of Bulletin 120, and reports the results of comparative soil 

 tests in paraffined wire baskets and in the field. The results obtained in the 

 baskets frequently failed to coincide with those obtained in the field and 

 duplicate tests were, furthermore, often not concordant. It is also 

 concluded that the weight of the green crop is a better measure of the 

 manurial effect of such a salt as muriate of potash than a measurement of 

 transpiration such as has been adopted by the U.S.A. Department of 

 Agriculture in many of their experiments. — F. J. C. 



Stock on Scion, Influence Of. By M. Yi viand- Morel ( Jour. Soc. Nat. 

 Hort. Fr. October 1908, p. 572). — The influence of the stock is considered 

 in the light of experience with regard to shape and quality of the fruit, 

 and it is concluded that such influence is probably the same and acts in 

 the same way as that of a different soil or source of nourishment. The 

 difficulty of the subject is much increased by the fact that the parent 

 stock itself does not possess an absolutely fixed and invariable type of fruit. 



M. L. H. 



Stocks for Fruit Trees in Australia (Dep. Agr. Vict. August 

 1908). — With apples the 'Northern Spy ' and 'Winter Majetin ' are used, 

 especially the former. Crabstocks cannot be used, on account of the 

 damage done by woolly aphis. A blight-proof Paradise stock has been 

 raised. For plums the ' Julien,' 1 La France ' (a variety of the 1 Myrobalan ') 

 and the ' Mussel ' stocks are used. For cherries the ' Mazard' and ' Mahaleb ' 

 stocks are of little use. The latter does not behave as a dwarfing stock. 

 A stock derived from the ' Montmorency ' class of cherries is widely used. 



Seedling pears are most commonly used as pear stocks. A good dwarf 

 stock is the ' Angers ' variety of quince. — C. H. H. 



Sugar-cane Root Disease. By F. A. Stockdale, B.A., F.L.S., 

 (Jour. Imp. Dep. Agr. W.I. vol. ix. No. 2, 1908, p. 103).— This disease 

 in the West Indies is attributed chiefly to Marasmhis sacchari, but 

 other fungi may be the cause of some of the damage noted ; several 

 planters have adopted remedial measures with success. Further experi- 

 ments are in hand, particularly as to the use of lime as a fungicide and 

 the disinfection of cane cuttings. — 31. C. C. 



Sugar Industry.— West Indian Conference, 1908 (Jour. Imp. Dep. 

 Agr. W.L vol. ix. No. 2, 1908). — Further papers and communications 

 published in detail : — 



" Further Notes on Cane Farming at Trinidad," by Professor 

 P. Carmody, F.C.S., &o. 



" The Polarimetric Determination of Sucrose," parts iv. to vii., by 

 H. A. Tempany, B.Sc, F.C.S., with discussions thereon. — M. C. C. 



