- ie 
PSY CHE . 
Bobretzky, N. Ueber die Bildung des 
Blastoderms und der Keimblatter bei den 
Insecten. (Zeitsch. f. wissensch. Zool., 
1878, v. 31, p. 195-215, pl. 14.) 
Historical; development of the blastoderm and ger- 
minal layer, based upon study of the eggs of freris 
crataegt and porthesia chrysorrhea; summary of pro- 
cesses as follows (p. 207-208) :~1st. Before the appear- 
ance of the blastoderm an increase takes place in the 
formed elements in the yolk, which consist of proto- 
plasm with a nucleus and which have the morphological 
value of true cells. —2nd. A part of such elements 
gradually comes out of the yolk upon the surface of the 
egg and there forms the blastoderm, in the formation 
of which no special blastem layer takes part.— 3rd. 
Another part of the same elements remains in the yolk 
after the formation of the blastoderm, and later causes 
the subdivision of the yolk into the so-called yolk- 
masses or yolk-balls, which are to be considered as true 
cells. —Comparison with the same processes in the 
other classes of arthropoda. G: D. (2229) 
[Bombyx mori. ] (Journ. applied sci., 
March 188t, v. 12, p. 43, 23 cm.) 
On the weight of cocoons and of eggs, on the num- 
ber of eggs to a given weight, and on the number of 
eggs laid by a single moth. GD: (2220) 
Bowles, G: J :, ed., see CANADIAN ENTOMOLOGIST. 
Brandt, Alexander. Uber die Eir6éhren der 
blatta (periplaneta) oritental’s. (Mém. 
acad. impér. sci. St. Pétersb., s. 7, v. 21, 
no. 12.) St. Pétersbourg, 1874.  t.-p. 
EOVEr Ep -.130) P-5)1 Ploy 33624), b20 <.115..3% 
Pam., 40 kop. 
Anatomical; upon the ovaries of b. orfentalis and 
the development of the eggs in them. Gi D. (2230) 
Brandt, Eduard [K.]. Ueber die Metamor- 
phosen des Nervensystems der Insekten 
Rec, 1451): 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V- I, p. 703-704.) G: D. (2232) 
Brandt, Eduard K. Nervnaia sistema os, 
vespa. (Protocoly S.-Peterburgskago ob- 
shtshestva estestvoispytatelel, tom 7, str. 
93-) S.—Peterburg, 1878. 12+3 p., 1 pl., 
21X14.5, t 16.5 X10. 
The development and adult structure of the nervous 
system of vespa vulgar/s described and figured.  Lit- 
erature (12 titles). G: D277) 
Brandt, Eduard K. O nervnoi sisteme vee- 
rokrylykh, strepstptera. Iz Protokoloy 
Trudov Russkago entomologitsheskago ob- 
shtshestva, tom 11, 1878 g. S.-—Peterburg, 
1878. 8p., 21X14.5, t 16.5 X ro. 
Anatomy of the nervous system of strepsiptera: 
figures the nervous system of stylops melittae. 
G: D. (2234) 
Brandt, Eduard K. Ein offener Brief an 
Herrn Prof. Fr. Leydig. Ueber evanza 
appendigaster. St. Petersburg, 1878. 7 p., 
20X14.5, t 17X10. 
Figures and describes the nervous system of e. ap- 
pendigaster. G: D. (2235) 
[2229-2244] 201 
Brandt, Eduard [K.]. Untersuchungen iiber 
das Nervensystem der Dipteren [Rec., 
1452]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704.) G: D. (2236) 
Brandt, Eduard [K.]. Vergleichend-anato- 
mische Skizze des Nervensystem der In- 
sekten [Rec., 1453]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704. ) G: D. (2237) 
Brandt, Eduard [K.]. Vergleichend-anato- 
mische Untersuchungen iiber das Nerven- 
system der Hemipteren [Rec., 1454]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704.) G: D. (2238) 
Brandt, Eduard [K.]. Vergleichend-anato- 
mische Untersuchungen iiber das Nerven- 
system der Hymenopteren [Rec., 1455]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704.) G: D. (2239) 
Brandt, Eduard !K.]. Vergleichend-anato- 
mische Untersuchungen iiber das Nerven- 
system der Kater, coleoptera [Rec., 1456]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704.) G: D. (2240) 
Brandt, Eduard [K.]. Vergleichend-anato- 
mische Uniersuchungen iiber das Nerven- 
system der Lepidopteren (Rec., 1457]. 
Notice. [Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704. ) G: D. (2241) 
Brandt, Eduard [K.]. Vergleichend-anato- 
mische Untersuchungen iiber das Nerven- 
system der Zweifliigler, diptera [Rec., 
1458]. 
Notice. (Monthly journ. sci., Oct. 1879, 
S. 3, V. I, p. 703-704.) G: D. (2242) 
Buchholz. Reinhold. Reisen in Westafrika. 
... Leipzig, F. A. Brockhaus, 1880... . 
Rey. and extracts entitled ‘“‘Aus der In- 
sectenwelt Ober-Guinea’s.” (Das Ausland 
[Stuttgart], 23 Feb. 1880, p. 147-150, 152 
cm.) 
Contains, according to Das Ausland, much upon the 
habits of ants and termites, and upon the structure of 
their nests. G: D. (2243) 
Bush, Mrs. A. E. Ways of limenitis bre- 
dowii. (Amer. nat, Feb. 1881, v. 15, p. 151.) 
(Separate [General notes; entomology], 
from Amer. nat., Feb. 1881, p. 151.) : 
Brief notes on the habits of this Californian species. 
G: D. (2244) 
