Технические характеристики
Полный вариант заголовка: «Instruction of the deaf and Dumb : or, a theoretical and practical view of the means by which they are taught to speak and understand a language : containing hints for the correction of impediments in speech : together with a vocabulary : illustrated by numerous copperplates, representing the most common objects to be named by beginners / by Joseph Watson, L.L.D.».