The Sign Language, a Manual of Signs - Being a Descriptive Vocabulary of Signs Used, by the Deaf in the United States and Canada #220624

In the preparation of the work I have been greatly in debted to Rev. Philip J. Hasenstab, of Chicago, who care fully went over the manuscript, verifying the descriptions, pointing out errors, and offering many suggestions which have added to the value of the completed material. I ask the indulgence of my critical readers for the de feets in the work which will become apparent. No one can realize them more fully than the author himself, but in extenuation I hope my readers will take into account the difficulty of accurately describing certain motions of the hands and arms which apparently have no name.