Notes and Comments. 
hi 
to the extent of £200 being wrought. Professor Kendall next 
day examined the district, and found the ground ‘ saturated 
with marsh gas,” and he advised the residents to keep their 
houses, and especially their cellars, exceedingly well ventilated. 
He predicted that gas might be expected to appear at any 
sudden drop in the barometer. That expectation has been 
justified, for on several such occasions gas has made its 
appearance in no fewer than ten houses, and has been lighted 
without explosion in cracks in cellar floors and other places. 
For days it was allowed to flare away at the top of a hollow 
gas standard in the street. Thanks to the warning as to 
ventilation no damage has since been done in the houses, but 
it is noticed, as at least an interesting coincidence, that one 
of the main buildings in the brewery in which the borehole 
is situated caught fire a few weeks ago and was burned down. 
A GEOLOGICAL STUDY. 
The gas has been analysed and found to be nearly pure 
marsh gas, doubtless derived from a coal-seam. The district 
is studded by old quarries in the coal-measure sandstones, 
and some of the houses affected are along a defined line on 
the map, suggesting the possibility that there may be beneath 
them a master-joint of the rock, and that this may have 
served as a distributive of the gas. Geology in that quarter 
of Bradford is for the present a very interesting study. We 
are indebted to the full reports in the Yorkshire Observer for 
much of this information. 
THE YORKSHIRE SUMMER SCHOOL OF GEOGRAPHY. 
The University of Leeds held a very successful course for 
teachers of Geography at the County School, Whitby last 
August ; and though the duty should have devolved upon either 
Sheffield or Newcastle this year, Leeds has agreed, in view of 
the impossibility of either of the sister Lmiversities taking its 
turn, to undertake the task a second time. The course will be 
under the general direction of Professor P. F. Kendall, and 
the scheme of lectures will be different from last year’s. The 
practical work will include a good deal of Meteorology, and 
more time will be devoted to field excursions that proved to 
be so valuable a feature last year. The idea underlying the 
syllabus is to give instruction and guidance to teachers in 
those aspects of the subject that are not satisfactorily pre- 
sented in text books, and particularly those that the experience 
of examiners shows to be inadequately taught in schools. We 
have heard nothing but praise from many who took part in 
the work of this attractive course last year, and have no 
doubt that this year’s result will be similarly successful. 
1914 April ] . 
