[August, 1901.] 



THE 



SCIENTIFIC TEMSACTIONS 



EOYAL DUBLIN SOCIETY. 



VOLUME VII.— (SERIES 11.) 



X. 



A NEW COLLIMATING-TELESCOPE GUN-SIGHT FOR LARGE AND SMALL 



ORDNANCE. 



By sir HOWARD GRUBB, F.R.S., Vice-President, Royal Dublin Society. 

 (Plate XXVI.) 



DUBLIN: 



PUBLISHED BY THE ROYAL DUBLIN SOCIETY. 



WILLIAMS AND NORGATE, 



14, HENRIETTA STREET, COYENT GARDEN, LONDON ; 



20, SOUTH FREDERICK STREET, EDINBURGH; and 7, BROAD STREET, OXFORD. 



PEINTED AT THE UNIVEESITY PEESS, BY PONSONBY AND WELDEICK. 



1901. 



