ADVERTISEMENTS. 



ill 



to plant life, with a maximum of effect 

 and at a minimum of expense. Just how 

 much this means to mankind is shown by 

 Professor Robert Kennedy Duncan. 

 After describing the important role 



GENISTA. 

 Without Bonora. With 



Bonora. 



"fixed" nitrogen plays in supporting and 

 moving the forces of nature, he proceeds. 

 "Harper's". 'The invaluable fixed nitro- 

 gen which we have within us, and which 

 we are continuously using up, we must 

 continually restore. In order to do this 

 we eat it. We eat it in the form of ani- 

 mal food or of certain plant products 

 such as wheaten bread, lint plants, and 

 animals, too, depend upon the soil for 

 every trace of nitrogen they contain, and 

 the soil in its turn has won it from the 

 reluctant air through the slow accumu- 

 lations of the washing rains, from the 

 lightning of a million strikes, or through 

 slew transformations by billions of nitri- 

 fying organisms through what, so far as 

 we are concerned, is infinite time. Not 

 only so, bat the valuable nitrogen con- 

 taining substances we employ in our 

 civilization are in the same parlous posi- 

 tion of depending upon the soil. Even- 

 cannon shot disperses in an instant the 

 fixed nitrogen which it required millions 

 of microbes centuries to accumulate. We 

 filch this nitrogen from the soil immense- 

 ly faster than it is restored by natural 

 process, and the land grows sick and 

 barren, and refuses to grow our crops." 

 The cure for this sick, enfeebled or 

 wornout land is, as Professor Duncan 

 shows, the returning to it in adequate de- 

 gree the fixed nitrogen of which it has 

 been so ruthlesslv robbed. Providen- 



tially, as lie points out, modern science 

 has. within recent years, discovered a me- 

 thod of drawing upon that vast reservoir 

 ol "tree" nitrogen, our atmosphere, for 

 an unlimited supply. With the methods 

 of converting this "free" into "fixed" 

 nitrogen this article has naught to do; 

 the question here considered is as to the 

 means of supplying it to plant life, and 

 at the least expense of time, labor and 

 money. This, it is confidently asserted, 

 is accomplished by the before mention- 

 ed English chemist's admixture, which 

 has been christened "Bonora." To be- 

 gin with, it is not open to the objection 

 so often urged against commercial fer- 

 tilizers, ol which, it is said, (> per cent 

 only is plant sustenance, the balance 

 being ground rock, which, sooner or 

 later, will sterilize soil. Again, on the 

 score of transportation and storing 

 charges, Bonora, fifty pounds of which, 

 it is claimed, is equal to a ton of com- 

 mercial fertilizer, is vastly more econom- 

 ical — as it is also in its application. 



P>onora, an odorless and stainless 

 compound, is all plant food — plant food 

 in its most concentrated form. Govern- 



A PALM. 

 Without Bonora. W^ith Bonora. 



ment analysis shows it to contain several 

 times more nitrogen than any other fer- 

 tilizer, and an abundance of phosphoric 

 acid and potash as well. Fifty pounds of 



