The concluding paragraph of the paper i n which Professors Guldberg and Waage enunciated the Law of Afass Action i n 1867 is still of interest and i n its general implications and spirit i s equally applicable today. (We quote the translation of Aoore.) 1rrir~by.dlJn.rbt 1hi.rJdd om douhllrrs worr d J i - d l , n u r r Cdpo,vlhe atlml;o,t o j moal r n m ~ i h nnmcly , Ihr d ; r ~ v . r , o: ~j r w . , contrloundr. .\iivrlldr..r~ . I r~ our opirzion lknl not~r