Books Published by William Blackwood and Sons. 



5 



PROFESSOR JOHNSTON'S WORKS. 



EXPERIMENTAL AGRICULTURE. Being the Results 



of Past, and suggestions for Future, Experiments in Scientific and Practical Agriculture. 

 By James F. W. Johnston, F.R.SS. L. & E., &c. In Octavo, price 8s. 



" A very valuable book for the agriculturist, both as a warning and as a guide It is only 



by the combination of science and practice like that exhibited, that British farming can successfully 

 compete with the altered state of the world." — Spectator. 



" Whoever, in tine, wishes to obtain a succinct and satisfactory account of all that has been done in 

 the field of agricultural experiment during the last eight or nine years, given in such a form as to 

 indicate at once the nature of the results that have been obtained by the application of each particular 

 substance, has now, in this volume, the means of readily obtaining all the information that he can 

 require ; while every one who intends to institute experiments in future will find in it the necessary 

 suggestions and directions, with information as to what has already been accomplished.— " — Scottish 

 Farmer. 



LECTURES ON AGRICULTURAL CHEMISTRY AND 



Geology. A New Edition, in One large Volume octavo, price 24s. 



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

 nearly 2000 analyses, in connection with Scientific Agriculture, made in the Laboratory 

 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 Agricultural Journal. 



" Unquestionably the most important contribution that has recently been made to popular science, 

 and destined to exert an extensively beneficial influence in this country." — Silliman's American Journal 

 of Science, (Rev. of the American Edition.) 



" A perfect storehouse of chemistry, geology, and agricultural science." — Spectator. 



ELEMENTS OE AGRICULTURAL CHEMISTRY AND 



Geology. A New Edition, greatly enlarged, price 6s. 



" The style is delightfully clear, the facts important, and brought to bear on the daily business of the 

 farmer's life with startling effect." — Britannia. 



" Nothing hitherto published has at all equalled it, both as regards true science and sound common 

 sense." — Quarterly Journal of Agriculture. 



" Of all the different works which have lately been published on the Chemistry of Agriculture, that 

 now before us appears to be most likely to be of real service to the practical man." — Gardeners' 

 Magazine. 



IV. 



A CATECHISM OE AGRICULTURAL CHEMISTRY 



and Geology. A New Edition, being the 27th, entirely re-written, price Is. 



" We would recommend every farmer in Britain, let his knowledge of agriculture be extended or 

 limited, to procure a copy of the Catechism for himself ; and this recommendation we would support by 

 the facts, that the memories of the initiated are apt to get rusty — so much so, that a little rubbing up 

 may be necessary ; while the uninitiated, unaware of the science of agricultural chemistry, by a simple 

 perusal will be able to discover it clearly, and mould its principles to obtain the highest advantage to 

 themselves." — Scientific Agriculturist. 



"La lecture de ce petit livre donnera, nous en sommes certains, a plus d'un lecteur pratique, des 

 inductions qui lui feront appercevoir la cause des mecomptes et des succes ^prouv^s en agriculture ; 

 resultats trop souvents attribues par l'aveugle routine au hasard ou a des circonstances tout a fait eHran- 

 geres. " — French Translation. 



ON THE USE OF LIME*' IN AGRICULTURE. In 



One 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."— Bell's Life. 



VI. 



CONTRIBUTIONS TO SCIENTIFIC AGRICULTURE. 8vo ; 6s. 6d. 

 THE POTATO DISEASE IN SCOTLAND IN 1845-6. 8vo, 4s. 6d. 

 INSTRUCTIONS FOR THE ANALYSIS OF SOILS. 8vo, Is. 



