Thirty-seven substances which may be used in finishing textiles were patch-tested on 66 patients who were suspected of suffering from a textile finish hypersensitivity. Twenty-seven patients reacted positively to one or more of the substances tested (see Table and text). Only seven patients reacted to formaldehyde. This formaldehyde hypersensitivity never occurred alone. In one of these patients the formaldehyde sensitization clearly occurred prior to the outbreak of his textile finish contact eczema. With respect to the other six patients we are inclined to consider the formaldehyde positive patch test likely as a result of group specificity to other textile finishes like dimethylol urea, ethylene urea, urea formaldehyde ether, triazon derivatives, and melamine formaldehyde. In addition to these a number of positive reactions occurred with two compounds derived from stearic acid (substances number 27 and 28) and sporadically also with other compounds.