00811cam a22002411 45000010008000000030008000080050017000160080041000330100017000740400027000910500020001180820015001381000031001532450147001842500012003312600060003433000042004035000020004456500023004656500024004886500014005127000043005262647999BD-DhUL20141030150947.0700914s1968 pauac b 000 0 eng  a 68015217  aDLCcDLCdDLCdBD-DhUL00aQD466b.W4 196800a549.2bWED1 aWeeks, Mary Elvira,d1892-10aDiscovery of the elements /cMary Elvira Weeks, Completely rev. and new material added by Henry M. Leicester. Illus. collected by F. B. Dains. a7th ed. a[Easton, Pa.] :bJournal of chemical education,cc1968. ax, 896 p. :billus., ports. ;c24 cm. aIncludes index. 0aChemical elements. 0aChemistryxHistory. 0aChemists.1 aLeicester, Henry Marshall,d1906-eed.