-BRISTLE FERN, 173 
delicate are the beautiful fronds when expanding, 
‘that should they rest against the glass they become 
blackened and unsightly. In the spring of 1845, so 
luxuriantly had the plant extended, that he removed 
the mass to a larger case. At that time there were 
ut twenty fronds, all fully developed, and pre- 
‘senting that beautiful green hue and delicacy of tex- 
‘ture which are the remarkable characteristics of the 
‘plant. The new habitat was a case with a neat 
‘mahogany frame, glazed on all sides, and having 
a deep tray of zinc; its measurements were three feet 
‘nine inches long, two feet six inches broad, and three 
pet of — The zinc tray was — on a 
y Jadiciously placing skeins of worsted, the 
: { to. a proper course, and the 
