494 Scientifie Intelligence. 
We must pass over the sections on the diseases of the pear, and 
the parasitic plants and insects hurtful to it ; while as to that on 
e 
pears is thus far an impossibility; and that in Eh older nothing 
quasi-species, P. cordata, Boissieriana and ene oe 2. The 
ermanica, or Pyrus communis, neluding our com- 
mon pears, both pear-shaped and oe ed, ‘ “both forms ss 
often met with upon the same tree.” rae der thi 
a drink. It 
in the north of France in the fifteenth century or later, and is now 
giving way to wine and perhaps beer again; and that pears would 
ave cctesiel ‘before this on a part of Normandy, hy it not 
that they are carried in immense quantities to rate ere they 
are used in the mawufucture of champagne. ‘the. Hellenic 
Race, which comprises P. parviflora and three seer subspecies. 
4. The Pontic Race, P. salicifolia and its allies. 5. The ~ ian 
Race, P. Pashia and its ar Pees 6. ahe Mongolian Rae 
Sinensis and its varieties. As one turns over the excellent plates 
one can hardly be persuaded that ee extremely diverse forms 
ra shows 
study is 
to rhea oe — about as much as he diminishes the yt of 
of the 
U. 8. ra beg Survey of the Territories for 1871 ; ne! os a 
QUEREUX.—This su ‘seit by M. Lesquereux (prepared i fay, 
1872) contains the capt Sgn of a number of species of fos 
Plants from specim 
— in print. The essential F these marked by the slows? as 
et 3: 
pork as yet chested | tafe oe Tertiary flora. The num- 
species is thus increased to 
