Files are in PDF format. Some are large; the size of each file is given.

** Two asterisks denote new material, located after the book "Magic Music from the Telharmonium" was written.

High-quality files (suitable for print reproduction) of the pictures appearing in these documents are available for purchase from Magnetic Music Publishing Co. Contact info@magneticmusic.ws.

ARTICLE
"THE ALTERNATORS OF THE TELHARMONIUM, 1906"
ICMC PROCEEDINGS, 1991 (400KB)

ARTICLE
"TELHARMONIUM [DYNAMOPHONE]"
THE NEW GROVE DICTIONARY OF MUSICAL INSTRUMENTS 1984 (2 MB)

LETTER
FROM JAMES E. PIERCE TO REYNOLD WEIDENAAR
MAY 11, 1983 (75 KB)

LETTER
FROM JAMES E. PIERCE TO REYNOLD WEIDENAAR
MARCH 30, 1983 (165 KB)

LETTER
FROM JAMES E. PIERCE TO CYNTHIA HOOVER
JUNE 23, 1974 (180 KB)

LETTER
FROM JAMES E. PIERCE TO CYNTHIA HOOVER
MAY 25, 1974 (400 KB)

ARTICLE
"THE RISE AND FALL OF THE NEW YORK ELECTRIC MUSIC COMPANY: A STUDY IN EARLY MUZAK, OF THE WONDERFUL TELHARMONIUM "
BY STODDARD LINCOLN, 1972 (1 MB)

ARTICLE
"HOGAN BROTHERS KNEW THADDEUS CAHILL"
BY RUTH DOUGLASS, 1968 (94 KB)

LETTER
FROM WILLIAM J. HOGAN TO RUTH DOUGLASS
APRIL 22, 1968 (32KB)

LETTER
FROM WILLIAM J. HOGAN TO RUTH DOUGLASS
APRIL 12, 1968 (25KB)

LETTER
FROM WILLIAM J. HOGAN TO RUTH DOUGLASS
MARCH 7, 1968 (95 KB)

ARTICLE
"THADDEUS CAHILL (JUNE 18, 1867--APRIL 12, 1934)"
BY GEORGE F. CAHILL, 1934 (2.5 MB)

CLIPPING
"THADDEUS CAHILL, INVENTOR, 66, DIES"
N.Y. TIMES, APRIL 13, 1934 (250 KB)

CLIPPING
"BASEBALL AT NIGHT FOR THE BOSTON FANS"
N.Y. EVENING JOURNAL, SEPTEMBER 5, 1910 (56 KB)

CLIPPING
"IMPROVED ELECTRIC MUSIC"
LITERARY DIGEST, JUNE 18, 1910 (103 KB)

CLIPPING
"NEW PLANT FOR HOLYOKE"
BOSTON EVENING TRANSCRIPT, JUNE 3, 1910 (200 KB)

CLIPPING
"A NEW 'TELHARMONIUM'"
ENGINEERING NEWS, MAY 26, 1910 (286 KB)

CLIPPING
"THE ELECTRICAL PRODUCTION AND TRANSMISSION OF MUSIC", ELECTRICAL WORLD, APRIL 28, 1910 (460 KB)

CLIPPING
"RESULT OF INVESTIGATION BY THE DIVISION OF FRANCHISES OF THE APPLICATION..."
ENGINEERING NEWS, FEBRUARY 11, 1909 (690 KB)

CLIPPING
"N. Y. ELECTRIC MUSIC CO. IN TROUBLE"
MUSIC TRADE REVIEW, JUNE 13, 1908 (85 KB)

PROGRAM
"TELHARMONIC HALL PROGRAM: WEEK OF DECEMBER 30TH" 1907 (3.6 MB)

CLIPPING
"MAY SEND MUSIC BY ELECTRICITY"
N.Y. TRIBUNE, DECEMBER 28, 1907 (70 KB)

CLIPPING
"WILL EXPLAIN INVENTION"
N.Y. MORNING TELEGRAPH, DECEMBER 27, 1907 (280 KB)

CLIPPING
"FREE MUSIC ON MERIDEN TROLLEYS"
MERIDEN RECORD, DECEMBER 16, 1907 (560 KB)

CLIPPING
"VALUE OF TELHARMONY"
HOBOKEN OBSERVER, DECEMBER 6, 1907 (80 KB)

** BROCHURE/PROGRAM
"TELHARMONIC TIMES"
NOVEMBER 23, 1907 (1.4 MB)

CLIPPING
"ELECTRIC MUSIC"
ELECTRICIAN AND MECHANIC, NOVEMBER 1907 (380 KB)

CLIPPING
"MUSIC FOR THE MILLION"
BY GEORGE H. PICARD
DESERET EVENING NEWS, JULY 13, 1907 (415 KB)

CLIPPING
"ELECTRIC MUSIC REPORT"
BALTIMORE NEWS, JUNE 28, 1907 (280 KB)

CLIPPING
"LE TÉLÉHARMONIQUE"
LE MONDE ARTISTE, JUNE 23, 1907 (370 KB)

CLIPPING
"A PUZZLE FOR THE BOARD OF ESTIMATE"
N.Y. SUN, JUNE 22, 1907 (700 KB)

CLIPPING
"PLAN TO DISTRIBUTE MUSIC AROUND TOWN"
BROOKLYN TIMES, JUNE 15, 1907 (120 KB)

CLIPPING
"WITHIN A MONTH..."
SAN FRANCISCO ARGONAUT, JUNE 15, 1907 (390 KB)

CLIPPING
"MUSIC BY WIRELESS"
CLINTON HERALD, JUNE 10, 1907 (854 KB)

ARTICLE
"THE WONDERFUL TELHARMONIUM"
BY A. B. EASTERBROOK
GUNTER'S MAGAZINE, JUNE 1907 (6.6 MB)

LETTER
FROM HAMMOND V. HAYES TO FREDERICK P. FISH
APRIL 12, 1907 (210 KB)

CLIPPING
"OBOE AND FLUTE AT TELHARMONIC HALL"
N.Y. AMERICAN, MARCH 21, 1907 (190 KB)

CLIPPING
"MUSIC MENU FOR HOTEL DINERS"
N.Y. PRESS, MARCH 21, 1907 (160 KB)

LETTER
FROM OSCAR T. CROSBY TO FREDERICK P. FISH
MARCH 8, 1907 (110 KB)

LETTER
FROM OSCAR T. CROSBY TO FREDERICK P. FISH
JANUARY 29, 1907 (70 KB)

CLIPPING
"BIG DRAWING CARD," N. Y. GLOBE AND COMMERCIAL ADVERTISER, FEBRUARY 28, 1907 (200 KB)

CLIPPING
"THE SEVENTH WEEK OF TELHARMONY"
N.Y. STAR, FEBRUARY 27, 1907 (270 KB)

CLIPPING
"AT TELHARMONIC HALL..."
N.Y. DRAMATIC MIRROR, FEBRUARY 23, 1907 (160KB)

CLIPPING
"STILL DRAWING CROWDS," N.Y. GLOBE AND COMMERCIAL ADVERTISER, FEBRUARY 22, 1907 (240 KB)

CLIPPING
"HYMNS BY ELECTRICITY"
N.Y. HERALD, FEBRUARY 18, 1907 (190 KB)

CLIPPING
"DAILY CONCERTS ARE GIVEN..."
N.Y. WORLD, FEBRUARY 17, 1907 (160 KB)

CLIPPING
"THE MUSIC OF THE FUTURE..."
N.Y. PRESS, FEBRUARY 17, 1907 (190 KB)

CLIPPING
"TELHARMONY"
MUSICAL AGE, FEBRUARY 16, 1907 (120 KB)

CLIPPING
"NOVELTIES AT TELHARMONIC HALL"
N.Y. MORNING TELEGRAPH, FEBRUARY 12, 1907 (150 KB)

CLIPPING
"DAS HAUS-ORCHESTER DER ZUKUNST"
MORGEN JOURNAL, FEBRUARY 11, 1907 (700 KB)

CLIPPING
"AMONG THE NEW FEATURES..."
N.Y. AMERICAN, FEBRUARY 10, 1907 (170 KB)

CLIPPING
"WORCESTER POLYTECHNIC DINNER"
ELECTRICAL WORLD, FEBRUARY 9, 1907 (260 KB)

CLIPPING
"TO TRANSPORT MUSIC"
ELECTRICAL WORLD, FEBRUARY 9, 1907 (210 KB)

CLIPPING
"WILL WIRE MUSIC TO HOTELS"
N.Y. HERALD, FEBRUARY 9, 1907 (160 KB)

CLIPPING
"TO DISTRIBUTE MUSIC BY ELECTRIC CORPORATIONS"
ALBANY ARGUS, FEBRUARY 6, 1907 (180 KB)

CLIPPING
"MISS ISABELLE WINLOCKE"
N.Y. MORNING TELEGRAPH, FEBRUARY 5, 1907 (49 KB)

CLIPPING
"TO PRESERVE MISS WINLOCKE'S VOICE"
N.Y. MORNING TELEGRAPH, FEBRUARY 5, 1907 (160 KB)

CLIPPING
"TELHARMONIE ALS MUSIKALISCHE KUNST"
MORGEN JOURNAL, FEBRUARY 3, 1907 (270 KB)

CLIPPING
"BUY MUSIC BY METER LIKE GAS OR WATER"
CHICAGO EXAMINER, FEBRUARY 3, 1907 (88 KB)

LETTER
FROM OSCAR T. CROSBY TO CHARLES F. CUTLER
JANUARY 27, 1907 (400 KB)

LETTER
FROM OSCAR T. CROSBY TO FREDERICK P. FISH
JANUARY 25, 1907 (150 KB)

CLIPPING
"TELHARMONIC HALL TO OPEN"
N.Y. DRAMATIC MIRROR, JANUARY 12, 1907 (150 KB)

** CLIPPING
"AN INVISIBLE RIVAL FOR THE HURDY GURDY"
N.Y. TIMES, JANUARY 12, 1907 (260 KB)

PROGRAM
"TELHARMONIC HALL PROGRAM AND ANNOUNCEMENT NO. 1", JANUARY 1907 (400 MB)

** CLIPPING
"MARK TWAIN AND TWIN CHEER NEW YEAR'S PARTY"
N.Y. TIMES, JANUARY 1, 1907 (280 KB)

CLIPPING
"TWAIN AND THE TELEPHONE"
N.Y. TIMES, DECEMBER 23, 1906 (150 KB)

CLIPPING
"MAGIC MUSIC FROM THE TELHARMONIUM"
N.Y. TIMES, DECEMBER 16, 1906 (540 KB)

BROADSIDE
"THE WONDERFUL TELHARMONIC SYSTEM"
BY RAY STANNARD BAKER
DECEMBER 1906? (1.2 MB)

BOOKLET
"TELHARMONY"
DECEMBER 1906 (6 MB)

CLIPPING
"NEW MUSICAL INSTRUMENT"
DENISON HERALD, NOVEMBER 10, 1906 (350 KB)

CLIPPING
"MUSIC IS ON TAP NOW OVER NEW YORK 'PHONES"
N.Y. TIMES, NOVEMBER 10, 1906 (290 KB)

PROGRAM
"FIRST PUBLIC CAHILL TELHARMONIUM CONCERT"
SEPTEMBER 26, 1906 (112 KB)

BOOKLET
"NEW YORK ELECTRIC MUSIC COMPANY"
[STOCK PROSPECTUS]
AUGUST 1906 (3 MB)

CLIPPING
"TO MANUFACTURE MUSIC BY ELECTRICAL DEVICE"
N.Y. TIMES, MARCH 11, 1906 (105 KB)

LETTER
FROM OSCAR T. CROSBY TO FREDERICK P. FISH
DECEMBER 16, 1904 (190 KB)