EMENDATIONS TO BE MADE IN THE TEXT. Page 2, line 25. Strike out the words "both copper and sulphur have disappeared," and insert the words, "it suddenly glows vividly, at the instant when the copper and sulphur combine." Page 16, line 11. Insert after the word "air," the words "See Appendix, Fig. XVII.” · Page 61, line 3 from foot. Add the words "See Appendix, § 17." Page 173, Exp. 94. Instead of the first sentence (three and a half lines) substitute the following: "Mix 75 or 100 grms. of flowers of sulphur and an equal weight of slaked lime. Heat half a litre of water in a capacious flask until it boils vigorously. Pour the mixture of lime and sulphur into the water, little by little, slowly enough not check the boiling. The movement of ebullition prevents the solid matter from becoming impacted upon the flask." Page 255, line 23. Strike out the words "consists of" and insert "may be made by folding a circular piece of parchment paper into the form of a cone, like the filter represented in Fig. XX. of the Appendix, and cementing the upper edges of the paper with a drop of a thick solution of shellac in alcohol. When nearly filled with the liquid to be dialyzed and placed in a tumbler of water, the cone floats upright and presents a large surface for the diffusion of the liquids. A more elaborate form of dialyzer may be made with " Page 267, line 6 from foot. ule," insert the words " space Between the words "the" and "globabout." Page 267, line 12 from foot. Strike out the words "Chapter XX," Page 299, line 1. Page 315, line 17. Page 397, line 4. After the word "lamp," insert" see Exp. 193." Insert after "sodium," the words "in bleaching." 5 Page 498, lines 12 and 13 from foot. Instead of "SbO," and SbS," read "Sb2O" and " Sb2S." Page 518, line 20. Strike out the words " is still," and insert " was until lately." Page 518, line 21. Page 518, line 22. Strike out the words "in Europe." Strike out the word "there." |