DR. P. H. VANDER WEYDE.
P. H. Vander Weyde, the well known scientist, and a former frequent contributor to the pages of the Scientific American, died at his residence in this city on the morning of March 18, after an illness of a
few days.
Dr. Vander Weyde was born in Nymegen, Holland, in
1813, a country to which his family, originally German, emigrated at
the time of the Reformation. He studied at Durpldorf and was graduated
from the Royal Academy at Delft. He was early known as a scientific
teacher, writer and lecturer, his first appearance in the latter
capacity having been made at Bois-le-Duc in 1833, when he delivered a
lecture on acoustics before the philosophical society of that place.
Subsequently he was appointed to the chair of mathematics and natural
philosophy at the Government School of Design. In 1842 he established a
journal devoted to mathematics and physics, and three years later was
awarded a gold medal by the Society for the Promotion of Scientific
Kuowledge for a text book on natural philosophy. At the same period, he
was editor of a political journal which vigorously waged war against
government abuses.
In 1849 he came to New
York, bringing with him a valuable historical collection of
philosophical apparatus which he had been forming for some time. He then
turned his attention to medicine, and after studying at the College of
Physicians and Surgeons and the New York University Medical College, was
graduated from the latter institution in 1857. Directly after his
graduation, he was appointed professor of chemistry in the New York
Medical College; was also appointed physician to the Northwestern
Dispensary, and practiced medicine in several parts of the city until
1859, when he relinquished his profession to occupy the chair of
physics, chemistry, and the higher mathematics at the Cooper Institute.
In 1864, the chair of
industrial chemistry was expressly created for him at Girard College.
Resigning this professorship two years later, he returned to this city,
and devoted himself to scientific writing and experimentation. In or
about 1869, he constructed, after wood cuts published in a German
periodical, a telephone transmitter that had been invented by the German
schoolmaster Philip Reis. This apparatus, the first seen in this
country, is illustrated and described in the Scientific American for
May 29, 1886. The original instrument of Reis had no adjusting screws,
so that its operation was uncertain. Having provided these and made
certain other improvements, the instrument worked very satisfactorily.
Not so with the receiver, with which be first had considerable trouble,
but of which he succeeded in remedying the defects by abandoning the
principle of Reis and substituting the intermittent magnetization of an
iron bar for the intermittent elongation of iron needles. This resulted
in the production of a receiver which worked perfectly.
Dr. Vander Weyde was not content to rest with the
instruments of these types only, but a year or so later, in 1870, made a
form in which there was a horseshoe magnet mounted back of and facing
the plate armature. It was simply a powerful electromagnet receiver,
something like, but immeasurably superior to, the instruments shown in
the Bell patent of six years later.
In 1869, Dr. Vander
Weyde accepted the editorship of the Manufacturer and Builder, a
scientific journal of this city. During his long connection therewith
his pen was very active, and his contributions to the scientific press
and especially to this journal were numerous. He was one of the editors
of Appleton's New American Cyclopedia and contributed many scientific
articles to that work. As an inventor he had a wide reputation, the
number of patents taken by him on inventions of his own, mostly
pertaining to electricity, being more than two hundred.
Dr. Vander Weyde, who claimed descent from Walther von der Vogelweide, the celebrated minnesinger of thethirteenth century, was also an accomplished
musician and well known as a composer, the number of his compositions
amounting to more than three hundred.
He was corresponding member of numerous scientific societies in Europe and America.
Notwithstanding his advanced age, he enjoyed
vigorous bodily and mental health up to the time of his death, within a
week of which event he wrote and completed an article upon modern electricity for a scientific journal of this city.
Our heartfelt condolence to the family of Dr. P. H. Vander Weyde for his passing. A memorial page should be made for him on Evertalk.
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