WORKS BY PROFESSOR JOHNSTON. 



LECTURES ON AGRICULTURAL CHEMISTRY AND GEO- 

 LOGY. A New Edition in one large volume 8vo, price 24s. 



This Edition, besides embracing the researches of other chemists, contains the result 

 of nearly 2000 analyses, in connexion with Scientific Agriculture, made in the Labora.- 

 tory of the Author since the publication of the former edition, and exhibits a full view 

 of the actual state of our knowledge upon this important branch. 



" A valuable and interesting course of Lectures." Quarterly Review. 



" The most complete account of Agricultural Chemistry we possess." Royal Agr. Jour. 



II. 



ELEMENTS OF AGRICULTURAL CHEMISTRY AND GEO- 

 LOGY. A New Edition, being the Fifth, greatly enlarged, price 6s. This little Work 

 is intended to give a familiar and condensed outline of the subjects treated of more fully 

 in the Lectures. 



CATECHISM OF AGRICULTURAL CHEMISTRY AND 



GEOLOGY. A New Edition, being the Twenty-fourth, entirely rewritten and en- 

 larged, price Is. 



LIME IN AGRICULTURE. In one 



ON THE USE OF 



volume, foolscap 8vo, price 6s. 



" Its title indicates its importance. Everything that can be said of lime as a manure is stated, 

 not at random or hearsay, but according to tests, made with chemical certitude, and verified by 

 productive results. It is a great addition to the art of preparing and using one of the best and 

 most universally appropriate of artificial manures." Sett's Life. 



V. 



INSTRUCTIONS FOR THE ANALYSIS OF SOILS. Octavo, 



sewed, price Is. 



VI. 



CONTRIBUTIONS TO SCIENTIFIC AGRICULTURE. In 



one volume 8vo, price 6s. 6d. 



VII. 



THE POTATO DISEASE IN SCOTLAND IN 1845-46. 



A few Copies of the Pamphlets issued upon this subject by PROFESSOR JOHNSTON, 

 with the co-operation of Sir WILLIAM JARDINE, Dr GRENVILLE, Mr FLEMING of 

 Barochan, and Mr MILNE of Milnegraden, have been bound up into a Volume, and 

 form an interesting record of what was known and done in Scotland in reference to the 

 Potato Disease. In one volume 8vo, price 4s. 6d. 



THE CHEMISTRY OF VEGETABLE AND ANIMAL PHY- 

 SIOLOGY. By Dr G. J. MULDER, Professor of Chemistry in the University of 

 Utrecht. Translated from the Dutch by Dr P. F. H. FROMBERG ; with an Intro- 

 duction and Notes, by JAMES F. W. JOHNSTON. With 22 Engravings, coloured and 

 plain. In one volume, large 8vo, price 30s. 



WILLIAM BLACKWOOD AND SONS, 



EDINBURGH AND LONDON. 



