.... By placid lakes, 

 Deep in the forest's leafy shade, 

 Wave-plumaged ferns and filmy brakes, 

 In verdant tracery arrayed. 



N the matter of ven- 

 tilation of Wardian 

 cases, too little is un- 

 derstood. Ferns, and a few kindred plants, may be grown 

 in air-tight cases, but there is no objection to occasionally 

 admitting air to a Wardian case. 



(244) 



