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He has been an eminent member of the British Association since its formation , contributing on all occasions valuable papers - at Oxford in 1832 one on his system of optics ; at Cambridge in the following year , on his discovery of conical refraction . Probably it is either a conscious conviction , or an intuitive perception of this , which influences the peculiar phase observable in the mathematical investigations of some of our greatest analysts of the present day . Failure in Cambodia , on the other hand , will generate spill-over military strife , drug cartels and regional contests for subversive influence . Whether you find information in books and periodicals , on the Internet , or through a broadcast medium , you cannot assume it is reliable . In practice , this means that beginning-of-defun moves point to the beginning of an enclosing or preceding function definition , or else to the beginning of the buffer . In celebration of National Hispanic Heritage Month , the Laboratory is sponsoring a musical performance by the group Mariachi Tapatio at noon on Tuesday , Sept. 23 , on the cafeteria lawn . Unless some such view be adopted , and the conception of time ( thus generalised and guarded ) be admitted as a fundamental element of algebra , it will indeed by hard , as he has shown , to maintain that algebra is a Science at all ; and we shall be almost driven to concede what is contended for by some eminent men , that algebra is rather to be accounted an Art or a Language ; or at least that its theorems are nothing else than either , on the one hand , practical rules , or on the other hand , laws of symbolism . But also I 'm reminded that I lose my sense of other worlds , or other realms , or other places , when I 'm here — that I 'm very consumed with this place , and with these routines that I have here .