76 
Poliaspis cycadis. 
Lepidosaphes pinnaeformis, and sp. now 
 Ischnaspis hy hea 
Vill. —TREE LABELS AT KEW. 
to the tree “itself, would give a brief and untechnical account of 
its origin, its history, ie economic qualities, and so on. 
About eight years ago a commencement was made by printing 
on cards, 6 in. by 4 in., an account, running to about one 
hundred words, of the commoner trees. The cards were of green 
Willesden paper, thin, very hard, and resistant but not imper- 
vious to moisture. They were fitted in tin frames painted black 
with a sheet of glass in front, and the whole nailed to the tree 
trunks. These card labels thus protected proved to be very satis- 
factory, and have been much appreciated by the public. 
recent years, however, it has been found difficult. to keep them 
in order, on account of the wanton smashing of the glass fronts 
by mischievous visitors. In number such visitors certainly are 
very few, and probably young and irresponsible, but unfortu- 
nately it is easy for a single person so disposed to break a large 
number of these glasses. For this reason an unbreakable water- 
ee covering for the labels was suggested, and a method of 
treating them was found which has proved satisfactory and is 
now  beae generally used. 
As these ee card-labels have been copied in other 
public gardens, it has been thought desirable lai the iitenal 
account of their treatment should be published : 
Carp-LABELS AND CELLULOID-VARNISH. 
The use of celluloid-varnish as a protective covering on printed 
card-labels was recommended by Professor C. V. Boys, F.R.S., 
the object in view being to make the labels resistant to damp, 
and therefore capable of being exposed to the weather without 
the cies of a facing of glass 
As an experiment, a considerable number of labels coated with 
steal shows that suntaoaies results can be aitanaad by the use 
of celluloid varnish made and applied as follows :— 
