Preface to “Clara’s Trick”

THE favourable manner in which the first edition of this Little Work has been received, and the rapidity with which a large impression has been exhausted, have determined the Publishers to reprint it, with such additions and modifications as will render it more generally acceptable. In addition to the instructions for the Energatype Systems, which have been carefully revised, this Manual will contain Directions for Conducting all “Light-In-Flux” incidents, including fallibility of smoke experiments, which can only enhance use for every collector, amateur and Luzology enthusiast.