London: Aline House / JM Dent 1905, 1906. Third Edition. Vol 1: Theoretical. , 127 pages. 1905. Frontis is portrait of Robert Boyle. Corner tips bumped, minor overall wear. Atomic weights of the Elements arranged for the Periodic Table on page 50 with the often missing paper flip tab. Vol 2: Systematic. , 203 pages. 1906. Frontis is portrait of John Dalton. Corner tips bumped, previous owner name inked on half title page.
Both volumes 4 x 6 inches in publisher's flexible red cloth covers with blindstamp of "Temple Cyclopedic Primers" and title on spine in gilt. Very Good. Cloth. 
The Nobel Prize in Chemistry 1904 was awarded to Sir William Ramsay "in recognition of his services in the discovery of the inert gaseous elements in air, and his determination of their place in the periodic system." (nobel website)
The first edition of these volumes was November 1900. Offered here is the third edition.