PROFESSIONAL ADVANCEMENT COLUMN 



This column serves as a place in which it is possible for men to insert brief notices 

 with a view to securing positions or securing men, either in botany or any of its related 

 and applied branches. The identity of advertisers may be learned from the Editor of the 

 Plant Wjrld. Notices should not exceed 100 words. They will be inserted once for 50 

 cents, three insertions for $1.00. 



THE PLANT WORLD Tucson, Arizona 



LARGE AUTO-IRRIGATORS 



For the automatic watering of large pots or beds of soil we offer an Auto- 

 Irrigator Cup which is similar to the ordinary Atmometer in its form and 

 proportions, but is 14 inches in length and Ih inches in diameter. These 

 large cups are installed and operated in the same manner as the smaller 

 Auto-Irrigators which are now in general use, and also lend themselves 

 to various other purposes. Each .80, per ten $7.00. 



Directions for the use of Auto-Irrigators will be sent on request. 



THE PLANT WORLD - - Tucson, Arizona 



NEWLY OFFERED BOTANICAL BOOKS 



The Plant World, vols. 1-19 complete, unbound. The only complete 



set that has been offered for several years $47 . 50 



Asa Gray, Systematic Botany, beautifully bound in half morocco, red 3 . 50 



Asa Gray, Scientific Papers, 2 vols., cloth 6. 00 



Harvey, Nereis Boreali-Americana. The three parts complete in one 



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HoFMEiSTER, On Higher Cryptogams. One vol., cloth 6.00 



Kerchove de Dentieghem, Les Palmiers. Beautiful copy in half . 



morocco, red. 39 plates. Paris, 1878 9. 00 



Joseph Leidy, Flora and Fauna within Living Animals. Smithsonian 



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Leighton, Angiocarpous Lichens, Lichen Flora of Great Britain. 2 



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Monro. Monograph of the Bambusaceae. From Trans. Linnean 



Soc. Six plates, half morocco 3. 50 



THE PLANT WORLD TUCSON, ARIZONA 



