404 
Observations on the various Insects 
me with the result of tlieir experiments, and more especially 
for their kindness in allowing me to state, that any person who 
may be desirous to see the system carried out, may have permis- 
sion to do so on their respective farms; and it will give me great 
pleasure to do so likewise. 
All Apparatus for preparing Food for Stock. 
II. Wrought iron-closed steam boiler. 
6. Cistern to supply the boiler and double pans 
with water. 
f. Valve which regulates the supply of water to 
the boiler. 
d. WaJer gauge. 
c. Safety valve. 
Steam gauge. 
y. Double pans for boiling linseed. 
h. Potato-steamer. 
Holme Lodge, Bedale, Yorks. 
f. Pipe which conducts _ the steam from the 
boiler. 
j.j j' Taps which rejiulate the steam. 
A. fr. A. Taps which allow the condensed steam 
to escape. 
/. Door for taking out the potatoes. 
in. Pipe from force-pump, 
n. n. Taps which supply the double pans with 
water. 
Joseph Marshall. 
XXVII. — Observations on the Natural History and Economy of 
the Insects affecting the Peas and Beans, including Weevils, Mag- 
gots, Bees, Plant-lice, Grain-beetles, Moths, and the Mole-cricket. 
By John Curtis, F.L..S., Corresponding Member of the Im- 
perial and Royal Georgofili Society of Florence; of the Aca- 
demy of Natural Sciences of Philadelphia, &c. 
Paper XII. 
Millipedes. 
Peas are subject to many casualties, arising from atmospheric 
changes and the attacks of insects. A similar mildew to that 
which affects turnips and rose-leaves, often renders the crops very 
