MAI^URING m THEORY AND PRACTICE. 



173 



Kg. 12.— EXPEEIMBHTS IN ■Watee-cdlttoe (by Br. NoUe) at the Experimental Station in Tharandt, Saxony. 



'^'^x^lf,TiSZ^^l%''T^^*'^°^-^h°^F^^^!'i^^^''^\^^^ plants, grown with the roots immersed in jars containing- 

 vanous solutions of the ingredients of plant-foodin water. The plants were supported by perforated corks restin" 



aS thp °.I«™ff„l*'?^iS'^S'- ™/ H"Pr^?*, ^^^^- i^-J"" ^- ='"* !•« ^"^ "^ ™™"'' ^°««". th^t^. a solution oontaSSr 

 thVnn™^?^^Wi„ P?™*^^ t' Pl™t-fpod including potassium as chloride. The solution in II. was the same af 

 +W^»^>if™l? ,?^t ^- *"i ¥' ®f °^?' that potassium was omitted in the jar II. The jar II.3 commenced as II.! 

 «^LV'+w °"tP°*°'^'""'v''?i P°*^/™'" chforide was afterwards added. VI. oontaiied the normal solution 

 nol1Sj» T r,^°^i!'ilLr' ™''^*i*"*«d *r liotassium IX., X., XL, and III., same as I., except that IX contS 

 no lime, X. no chlorine, and XI. no mtrogen, and III. had nitrate instead of chloride of potassium. 



There seems no reason, moreover, why beauty and 

 usefulness should not go hand in hand, and why the 

 florist, as well as the gardener, should not seek for 

 aid from sewage. _;^ Roses especially should repay 



cultivation remarkably well, considering their love 

 of ammoniacal dressings, and abundant luxuriance 

 and bloom would almost certainly reward the florist's 

 efforts in this direction." 



