Mr. Pupin has invented an apparatus by which he hopes to greatly extend the distance over which men may talk, and it has even been suggested that Uncle Sam and John Bull may in the future swap stories over a transatlantic telephone line.

R81424, 24Jul51, Random House, inc. (PWH) PUPIN, MICHAEL IDVORSKY.

R82016, 10Aug51, Varvara Pupin Smith (C) PUSEY, WILLIAM ALLEN.

PUPIN, MICHAEL.

Varvara Pupin Smith (C); 7Jan58; R205798.

SMITH, VARVARA PUPIN. Romance of the machine.

SEE Pupin, Michael.

PUPIN, MICHAEL.

Varvara Pupin Smith (C); 26Jul62; R299123.

SEE CLARK, GORDON H. SMITH, VARVARA PUPIN.

SEE PUPIN, MICHAEL.

R81424, 24Jul51, Random House, inc. (PWH) PUPIN, MICHAEL IDVORSKY.

R82016, 10Aug51, Varvara Pupin Smith (C) PUSEY, WILLIAM ALLEN.

PUPIN, MICHAEL.

PUPIN, MICHAEL.

Varvara Pupin Smith (C); 26Jul62; R299123.

SEE CLARK, GORDON H. SMITH, VARVARA PUPIN.

SEE PUPIN, MICHAEL.

It is the story of great menMorse, Thomson, Bell, Marconi, and othersand how, with the aid of men like Field, Vail, Catty, Pupin, the scientist, and others in both the technical and commercial fields, they succeeded in flashing both messages and speech around the world, with wires and without wires.

Added to the efforts of these able engineers was the work of Prof. Michael I. Pupin, of Columbia University, whose brilliant invention of the loading coil some ten years before had startled the scientific world and had increased the range of telephonic transmission through underground cables and through overhead wires far beyond what had formerly been possible.

Professor Pupin applied his masterful knowledge of physics and his profound mathematical attainments so successfully to the practical problems of the transmission of telephone speech that he has been called "the telephone scientist.

" It is impossible to talk over long-distance lines anywhere in America without speaking through Pupin coils, which are distributed throughout the hundreds of thousands of miles of wire covering the North American continent.

In the transcontinental telephone line Pupin coils play a most important part, and they are distributed at eight-mile intervals throughout its entire length from the Atlantic to the Pacific.

In speaking at a dinner of eminent scientists, Mr. Carty once said that on account of his distinguished scientific attainments and wonderful telephonic inventions, Professor Pupin would rank in history alongside of Bell himself.

Pupin, Michael I., 247.