Booth: Nesting of the Grasshopper Warbler. 203 
The first nest was built on the border of a large patch of 
dead bracken (the new fronds were not up yet) and thistles, 
and was placed down in the centre of a tussock of old grass of 
the tall-growing variety and was built of dried grass: later, 
when the new bracken had come up, was well screened by them. 
It was overhung by a well-grown elder tree whose lowest bran- 
ches swept and interlaced with the bracken: this was one of 
the two favourite approaches to the nest used by the birds, the 
other approach was from a low, long, straggling bush of gorse, 
from which it reached the nest by creeping along a slight 
depression or channel-way among the herbage. 
The second nest was in the bottom of one of the numerous 
small ghylls and was again adjoining a large bed of bracken, this 
time intermixed with wild rasp, with an undergrowth of old rasp 
canes and dead bracken. In this instance it was built between 
a few bracken stalks that formed one of several somewhat 
isolated clumps from the main bed; here placed this time on 
new grown bent, with first the shelter of the dead bracken 
fronds ; then above the new growth it had placed its nest. The 
nest differed shghtly from the first in having a few oak leaves 
interwoven round its outside. One of the two favourite 
approaches to the nest was from a young oak that was growing 
near, and probably this accounts for the introduction of the 
leaves. The other approach was from a tall-grown broom 
from both of which places it reached the nest by creeping 
stealthily along the main bed of bracken. Both nests had a 
clutch of 6 eggs which, in both instances, all hatched out, 
and all the young birds were, when they left the nest, well- 
grown and hardy looking. 
[After the young had left, each nest was taken—the first 
one for the Keighley Museum, and the second one for the 
Bradford Cartwright Hall Museum—at which places they may 
be seen.—H.B.B.]. 

0. .——— 
The Transactions of the Manchester Geological and Mining Soctety, 
issued in February, 1916, contain Mr. L. R. Fletcher’s presidential address 
in which he deals with the question of war and coal mining; a severe 
criticism by Dr. Arber of Mr. H. Bolton’s paper on the ‘ Fauna and 
Stratigraphy of the Kent Coalfield’; two papers by Dr. G. Hickling, 
namely ‘ The Coal Measures of the Croxteth Park Inlier,’ and ‘ The Geo- 
logical Structure of the South Lancashire Coalfield.’ 
The Quarterly Journal of the Geological Society, Vol. 72, part 2, for 
1915, dated February 23rd, 1916, was received on March 6th. Among the 
contents we notice the following: Dr. A. Dunlop on ‘ A Raised Beach on 
the Southern Coast of Jersey’; Mr. Clement Reid on ‘ The Late Glacial 
Plants of the Lea Valley’’ Mr. S. H. Warren on ‘The Late Glacial 
or Ponder’s End Stage of the Lea Valley’; Dr. J. E. Marr on ‘ The Ash- 
gillian Succession to the West of Coniston Lake’; Dr. Stanley Smith on 
‘The Genus Lonsdaleia and Dibunophyllum rugosum.’ 


1916 June 1. 
