Bertrand rectilinear system. Canada. 1953. Dr. Claude Bertrand, the French Canadian neurosurgeon, introduced his pneumotaxic guide in 1953 for the treatment of Parkinson's disease. It was based on the orthogonal system combined with rectolinear...
Bookplate: Seated Eastern male in ethnic dress in a medallion around which is motto: Labeur est mon desduyt. Below two tapeworms form a holder enclosing a mosquito on a pin.
Bookplate: A crowned serpent, curled around a caduceus, decorates the elaborate facade of a "gingerbread" house. Patients ring the respective bells of Dr. Oskar Lerperger, an ophthalmologist, and Dr. Anna Lerperger, a pediatrician.
Picture of some buildings as they appear from an open window. Several books are on a table, and a caduceus is shown at right. Text in Latin. Drawn by Ada Carazzola.