Copyright©1961, 1962 bySterlingPublishingCo.,Inc.
AllrightsreservedunderPanAmerican
andInternationalCopyrightConventions.PublishedinCanadaby~.l1eralPublishingCom-
pany,Ltd., 30 LesmillRoad;'DonMills,Toronto,
Ontario.
Publishedin theUnitedKingdombyConstable
andCompany,Ltd., 10 OrangeStreet,LondonWC 2.Doveredition,firstpublishedin 1968, is anunabridged
.Ialteredrepublicationof theworkoriginallypublishedby
theSterlingPublishingCompany,Inc.,in 1961underthetitle
ChemistryforChildren.Theworkisreprintedbyspecialarrange-
mentwithPrintedArtsCompany,Inc.
StandardBookNumber:486-22031-
Libraryof CongressCatalogCardNumber:68-ManufacturedintheUnitedStatesofAmerica
DoverPublications,Inc.
180 VarickStreet
NewYork,N. Y. 10014