00406nam a2200157Ia 4500003000900000008004100009040001600050080001600066100001900082245004500101260004100146300001700187500001100204650001100215650002200226IN-BaIIA211028s9999    xx            000 0 eng d  cIIA Library  a523.64bWIL  aWilliams, John 0aObservations of cometscJohn Williams     aLondonbStrangeways and Waldenc1871  axxxii, 124p.  aplates  aComets  aPlanetary systems