ON EXTENSIVE FISSURES, Wc. 285 
eight teeth on the retuse part of the elytra; two, small and 
acute, on the upper part; then, two large decurved ones, be- 
tween which and the apex are four very obscure denticulations. 
98. Macrocnema marcipa, J//. Sea-coast. In abundance on 
Cakile maritima. 
99. M. arrrnis. Boldon Flats. On the Bitter-sweet (Sola- 
num Dulcamara ). 
100. CoccrnetnA M-nierum, Fab. Rare. Sea-coast, near 
Whitley. 
X.—On extensive Fissures observed in the Stems of two living and 
healthy Trees of the Spruce Fir. By Raueu Carr, Esq.* 
[Read May 18, 1848.] 
Tux latter part of summer, and the beginning of autumn in 
1847, were remarkable, it will be recollected, for a long-pro- 
tracted drought. In the last week of September, I happened to 
be engaged in marking for the axe, a number of trees that were 
to be taken out of a plantation at Hedgeley, which, being then 
of the age of 19 years, required to be thinned for the third time. 
It formed a compact mass, occupying about eleven acres, upon a 
light surface-soil, under which lies, in many places, a substratum 
of clay, not unfavourable to the growth of oak. The species 
which I had planted were chiefly the last-named tree, to come 
forward as a permanent crop, accompanied by some Sycamore, 
and a liberal sprinkling of Birch. The nurses were Larch and 
Spruce Fir. The Larch had already begun to show symptoms 
of heart-rot, a disease to which that species is more peculiarly 
liable on land that has been recently under the plough, as had 
been the case with more than half of the surface in this instance, 
* Mr. Carr’s paper was not received in time for insertion in its proper place. 
