46 BRITISH OAK GALLS. 
TERMS EMPLOYED IN THE SYNOPTICAL TABLES. 
The following terms employed in the synoptical tables 
of each gall are intended to convey these meanings : 
‘English name of gall’: The majority of the English 
names occur in ‘Alternating Generations,’ and- are 
very appropriate. 
‘Position of gall’’: This indicates where the gall is 
normally situated. Deviations are referred to else- 
where. 
‘‘Manner of growth’’: The general appearance of 
the gall; its shape, etc., and whether concealed or 
obvious. 
‘“‘Colours’’?: The first mentioned indicates that the 
gall is of that colour when in earliest stages of growth, 
and that it assumes the shades and tints following 
until it arrives at or passes maturity, when it is usually 
of that colour named last. 
‘‘ Average dimensions of a mature specimen’’: These 
must not be regarded as hard and fast measurements, 
but more as guides to the collector and student. 
‘‘May be sought during the months of”: The 
months mentioned are inclusive. 
‘Growth is complete by the end of’: With refer- 
ence to galls, such as the Neuwroterus, Biorhiza, and 
other genera of similar growth, the month stated indi- 
cates that the galls complete the stage of growth in the 
situations in which they began growth, and not that 
they have arrived at a condition in which the imagines 
always emerge. It must be borne in mind that many 
galls expand considerably with the return of spring. 
