INSECTA. 175 
dcs Sciences Naturellcs (Zoologie), 5^"^® ser. xi. 1869, 
pp. 135-274. 
The autlior, after reviewing former observations on tlie ani- 
mal heat of the Invertebrataj and especially those of Newport, 
discusses : — the different modes of detecting that heat; the results 
of experiments on isolated insects of different orders, Myriopoda 
and Arachnida ; the influences of humming and muscular 
contraction in the Hymenoptera, and, generally, of sex ; the 
superficial temperature of naked larvje and of pupae ; the com- 
parative external and internal temperature of larvae ; the heat of 
enclosed pupae, and the differences in various parts of the body 
of perfect insects. He treats these subjects at considerable 
length, with much detail of experiment, and considers that the 
following rule is established, viz. that, in insects capable of flight, 
heat is concentrated in the thorax in a focus of intensity propor- 
tional to the effective power of flight. 
OiiEDLEii, ViNCENz. Bcitrag zu den monstrbsen Erscheinungen 
thierischer Organe. Correspondcnz-Blatt des zool.-min. 
Vcr. in llcgcnsburg, 1869, xxiii. pp. 34^36. 
The author adds further instances of abnormal development 
to those mentioned in the same publication by him in 1858. In 
the Insecta he specifies Rhyparachromus pedestris, Megalonotus 
chiragraj Miris holsatus, Mormidea nigricans, Otiorhynclius ar- 
madillo, Liophloeus nuhilus, Philontlius (sneus, Cetonia morio, 
Ccruchus lenehrioides , Aromia moscliala, Saperda carcharias, 
Magdalinus alerrirnus, Tinea granella, and Bomhyx mori. 
Grimm, O. von. Rcchcrclies anatomiques sur les antennes des 
insectes. Bulletin de FAcad. Imp. des Sci. de St. Petersb. 
xiv. no. ], pp. 66-73, tab. xiv. figs. 1-7. 
Contains observations on antenme of Oryctes nasicornis, Apho- 
dius porcus, Geotrupes vernalis and stercorarius, Aleuchus lati- 
collis, Formica rufa, and Cimhex variabilis, especially with 
reference to the works of Landois and Leydig, and with the re- 
sult of conviction to the author that the antemue of insects 
generally act solely as organs of touch, and that only in some, 
as in O. nasicornis, have they an additional, but as yet undeter- 
mined, function. 
Guehin-Meneville, F. E. Etudes sur les Inseetes consideres 
eomme la cause de la maladie dcs Cannes h sucre dans les 
lies Maurice et de la Reunion (P® Partie). Annales Soc. 
Entom. France, 4® ser. tome ix. pp. 89-92. 
The author deplores his inability to suggest any remedy for 
the ravages of the insects that feed on the sugar-cane, in spite 
of the foundation by the planters of Mauritius of a prize of 
50,000 francs for efficient scientific help. He says he can only 
give the scientific names of these insects, and proceeds to men- 
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