280 M. E. Baudelot on the Influence of the 
many of the species have hitherto been peculiar to the several 
strata. This is here shown. 
g = Seulpes E d = 8 
3 S Ss . g $ 2 cS) 
| 2/372) 2/2 | 28 eae 
SSS Se es el eee | St |e 
Whales seeas 0 .|.0 192 Ital 1) 0 1oe 0) as 
Upper Greensand) 1 | 2). 8 |14.) 2.) 4 | 0) |) .00 ose 
Gaultier O23 @ | © 1 0 0 | Oae 3 
Hunstanton Rock! 1 6 7 0 2 5 ] 3 ll on eee 
So far as life-evidence can be trusted, this table demonstrates 
the Hunstanton Rock to be Upper Greensand. With 24 Green- 
sand species, and only 5 Chalk forms, and 3 Gault forms, the 
affinity of the bed with the latter deposits must be very slight, 
and need not be anything at all. Hence, and especially as most 
of them come from the middle of the stratum, the species pecu- 
liar to the Hunstanton Rock must be regarded as species pecu- 
liar to the Upper Greensand. 
And when it is remembered how many of the fossils of most 
Greensand localities had previously only been known from the 
Chalk or Gault, the proportion here is singularly small. Even 
in this section there are 14 Greensand species which, since they 
are also Chalk species, may, at one period of our knowledge, 
have been peculiar to the Chalk; while there are 3 which, for 
the same reason, may have appeared to be peculiar to the Gault. 
Therefore there 1s nothing in the fossils to distinguish this de- 
posit from the Upper Greensand of other localities: to the 
paleontologist the Hunstanton Red Rock is a northern extension 
of the Upper Greensand. 
XXXIV.—On the Influence of the Nervous System on the Re- 
spiration of Insects. By E. BaupELor*, 
Tue influence of the nervous system upon the respiration of 
Insects had attracted but little attention on the part of physio- 
logists until, m 1860, M. Faivre undertook some interesting 
investigations upon this subject. 
The results of his researches led this naturalist to assume that 
in the Dytici, as in the Mammalia, the respiratory movements 
have their origin or starting-point in a special region of the 
* Translated by W. S, Dallas, F.L.S., from the ‘Comptes Rendus,’ 
June 20, 1864, p. 1161. 
7 Annales des Sciences Naturelles, tome xii. 
