ly, length of spoke and amount of " di?ih." Alj axies wnose centraTportions are ardjed np or jogged ^e -^^ l«a£- - TKACI^^TTD down, forward or backward, can^yg^ readily set with the attachments being easily adjustable independently ol each other to suit the opposite parts of the book are pivotally… … N. Y., and is shown in the accompanying illustration, its correctness, are, first, that it be of such dimensions DBAEE'S ADJTTSTABLE BOOK HOLDEB. a patent for the device having recently been allowed. that the size of field is sufficiently large for easy obser- The body of the attachment is…
