SPECIAL MANURES 211 



well-rotted dung, or, if this is not available, 

 Peruvian Guano is useful for the same purpose. 

 Honeysuckles should be occasionally watered with 

 a liquid manure containing -g^ oz. of iron sul- 

 phate, and ^ oz. each of sulphate of ammonia, 

 lime superphosphate and kainit to 2 gallons of 

 water. 



An excellent substitute for iron sulphate (green 

 vitriol) is the more expensive iron ammonium sul- 

 phate (ferrous ammonium sulphate), a salt of a 

 paler colour. It is soluble in water, and is a first- 

 class manure. 



Hornbeams are benefited by occasional 

 dressings of dung, bone-meal, and iron sulphate. 



Horse Chestnut Trees are improved by 

 occasionally manuring them with bone manures 

 and sUicate of soda. 



The author's friend, the late Dr. J. E. Taylor, 

 said that "it is now a generally recognised fact 

 that the time exists when, at least the elementary 

 scientific principles, including applied chemistry, 

 which govern horticulture should be made a 

 feature in the education of every gardener ; and to 

 those who take a personal interest in the welfare 

 or cultivation of their plants and in their gardens," 

 the details given in these pages wiU not be without 

 utility. 



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