cinth was a bad green, and that the blue of the Aconite was 

 really violet. However, here is a genus in which all the 

 species previously discovered were either yellow, or some colour 

 in which yellow occurs in manifest combination ; but the Tr. 

 azureum has no yellow at all, the blue being as perfect as that 

 of the Siberian Larkspur. 



It is then no longer safe to assert that a blue Dahlia, or a 

 yellow Pelargonium, or a blue Ranunculus, or a yellow Paeony, 

 are impossibilities. There is no telling how soon art or acci- 

 dent may produce every one of them. 



This pretty species makes a beautiful object when trained 

 on some ornamental wire-work, fastened to the pot, and re- 

 quires the same kind of treatment as Tropseolum tricolorum. 



The soil, in wdiich it is potted, should consist of some good 

 rich sandy loam and leaf-mould, or fibry-peat, with a good 

 portion of sand. The mixture should not be sifted fine, but 

 left rather coarse. Then when the roots begin to grow (which 

 generally happens in August or September), pot them in the 

 above mixture, covering the root in the soil about half an inch, 

 and well drain the pots. The pots should then be placed in 

 a sheltered situation, but not in a confined or shaded place, 

 out of doors. They will then grow rapidly, and much stronger 

 than if kept in the greenhouse or pits, but when the nights get 

 cold or wet, they must be removed to the greenhouse for the 

 winter, out of the reach of the frost ; they must be placed in 

 an airy and rather dry situation, and where there is plenty of 

 light. They will then flower freely during the spring and 

 part of the summer. 



If there are several roots some may be retained in a dry 

 state until the spring, before potting, by which means they 

 will flower much later. 



When the plants have done flowering withhold water gra- 

 dually, and place the pots in a dry situation. The bulbs do 

 best when allowed to remain in the pots all summer to rest. 



It is increased by cuttings, taken off before the plant be- 

 gins to flower. The young plants, when struck, should not 

 be either potted off, or the tops tied up, but allowed to grow 

 and hang down over the pot. 



