360 BOTHAMLEY : MINERAL WATERS OF ASKERN IN YORKSHIRE. 
I cannot conclude this paper without expressing my great in- 
debtedness to my friend Dr. J. G. Cassels, of Askern, for his ever 
ready assistance, both in the work at the wells and in the enquiry 
into the history of the spring. I am also indebted to the proprietors 
of the various Pump Rooms for the facilities they so readily gave me 
for collecting the samples of water and making experiments at the 
wells. 
