302 - Editors Table. [April, 
Fic. . Tina a section through the optic ganglion and the eye; X 50 diam- 
Fic. # mene gitudinal section through the brain, ae the calyx, antennal lobes, 
and commissural lobes; 50 diameters. 
Fic. 8 a.—Enlarged view of Fig. 8 (xX % B.), hea the relations ina longitu- 
dinal section of the calyx to the stalk, although the direct connection of the 
stalk with the calyx is not seen in this section. 
DESCRIPTION OF PLATE III. 
Fic. 1.—Section 19 (X 4 A), passing through the back of the brain, showing the 
posterior edge of the calices and antennal lobes and cesophageal commissural 
nerves and optic nerve. /¢r., small trachez. 
Fic. 2.—Section 20, passing through the back of the brain, showing the relation of 
the optic nerve to the optic ganglion and eye; the cornea, cones, rods and retina 
of the eye are shown; %A. sup. n., superior, m. n., median, and inf. 
inferior commissural nerves connecting the hemisphere 
Fic, 3.—Enlarged view of upper part of the stalk and SS, and the ganglion cells. 
surrounding and filling the latter; x 225 diameters. 3 a, 4, c,d, different 
ganglion cells seen from different directions, 3 ¢ showing the large enc filled 
with coarse uh eae but showing no nucleolus ; one, however, is seen in Fig. 
3.5. mcl.; X 725 diameters. 
Fic, 4.—Longitudinal section of the brain and subcesophageal ganglion, aiapten 
50 diameters, showing the relations between the two, and of the origin of the ceso- 
phageal commissure from the upper side of each ganglion, ¢. ¢., from the back 
of the brain and the upper side of the sebiicesboiatia ganglion 
Fic. 5.—Enlarged view (x % B) of the subcesophageal ganglion of Fig. G, FLX; show 
ing the origin of the commissure to the first thoracic ganglion, and on the under 
side the three lobes (mandibular, spent and labial), whence the nerves are 
sent to the pager -appendages. mand. /., mandibular lobe; max. ¢., maxillary, 
and max. /’,, 2d maxillary or Iabial lobe; com., commissure to siboieaphagedk 
ganglion. 
:0: 
ENITORS* TABLE, 
EDITORS: A. S. PACKARD, JR., AND E. D. COPE. 
The day is probably not distant when government aid for 
the protection of agriculturists against injurious plants and ani- 
mals will be demanded as urgently as for geological, coast and 
land surveys. Let us glance briefly at the reasons why such aid 
becomes imperative. Until within three years no special atten- 
tion had been given by Congress to these subjects; what little 
had been done by the botanist and entomologist connected with 
the Department of Agriculture being, from causes beyond their 
control, too slight to be worthy of mention. What had been done 
by the Government was much less than the efforts of several States, 
notably New York, Missouri and Illinois; these States having 
