Molecular Events in Differentiation Related to Specificity of Cell Type

volume 34. Another feature which had been extended to this volume is a cumulative index for all four volumes of the series. The preparations of compounds described in the present volume include: galactose-l-phosphate, homogentisic acid, dipalmitoyl-lecithin, lactalbumin, lactoglobulin, carnosine, histidinol dihydrochloride, urocanic acid, Nacetylimidazole, glycolaldehyde, sodium glyoxylate, glucose-i-phosphate, tetraacetyl ribofuranose, argininic acid, methionine sulfoxide and sulfone, ethionine sulfone, linolenic acid and its methyl ester, and D-glutamic acid. Although all these preparations have been previously described in the literature, they are presented here in a sometimes modified form and benefit from the advantage of having been checked in another laboratory. The two enzyme preparations which have been included are alcohol dehydrogenase and inorganic pyrophosphatase. In the opinion of this reviewer the enzyme preparations, which in general are clearly described, should give information about inhibitors, activators, substrate specificity, and Km values; there should be more than a mere reference to them if these preparations are to be of the same value as the others. The volume certainly should be of interest to students as an illustration of chemical techniques as applied to biochemistry and to researchers as an addition to a growing compilation of biochemical preparations.