M

Macassar Oil
16; Macassar oil is an oil used primarily by men in Victorian and Edwardian times to smooth their hair. Wikipedia entry

Madame Butterfly
567;

Magic Crystal
133;

magnetism
97; 121;

Magyakan
143;

Mahdi
29; "the expected one" - a Muslim leader who assumes a messianic role; The mahdi in V.

Manufactures and Liberal Arts Building
24; at the Chicago World's Fair

Malus, Etienne-Louis (1775-1812)
126; "Napoleonic army engineer and physicist [...] looking through a piece of Iceland spar [...] discovered polarized light"; Wikipedia entry

Mathematics
122; 147;

Matteawan
145; mental hospital

Maxim whirling machines
27;

Maxwell Field Equations
58;

Maxwell
98; "Treatise on Electricity and Magnetism of 1873", 98;

McAdoo, Chevrolette
26;

McKinley, President William (1843-1901)
109; the 25th President of the United States; figurehead, 109; Wikipedia entry

Meat Olaf
129; Norwegian dish, a variant of meatloaf, perhaps; 135;

Michelson
58; Michelson-Morley Experiment, 59; 132;

Midway Plaisance
29;

Mikimoto, Dr.
114; cultured pearls;

Minié ball
101; Prior to the development of the minie ball, rifles were not used in combat due to the difficulty in loading. The ammunition used by rifles was the same diameter as the barrel in order for the bullet to engage the groves of the rifled barrel. As a result the ball had to be forced into the barrel. The minie ball, originally designed by Captain Claude-Etienne Minie of France and improved on by manufacturers in the United States, changed warfare. Since the minie ball was smaller than the diameter of the barrel, it could be loaded quickly by dropping the bullet down the barrel. This conical lead bullet had two or three grooves and a conical cavity in its base. The gases, formed by the burning of powder once the firearm was fired, expanded the base of the bullet so that it engaged the rifling in the barrel. Thus, rifles could be loaded quickly and yet fired accurately. From the Smithsonian website

Morgan, Blinky
59; execution of, 65;

Morgan, John Pierpont (J.P.) (1837-1913)
34; J.P. Morgan originally provided Tesla $150,000 (although he needed $1M) in 1900 to build the Wardenclyff laboratory, but abandoned Tesla when he found out what Tesla's true purpose for Wardenclyff was &151; Tesla's vision of free power did not agree with Morgan's financial worldview; From Educate-Yourself.com: "Undreamed of therapeutic applications to improve human health and to eliminate disease conditions could have been achieved fully 100 years ago had Tesla been allowed to complete his commercial development of Radiant Energy. But powerful barons of industry, chiefly in the person of John Pierpont Morgan, colluded to deny him the financial backing he needed and in doing so, effectively denied mankind one of Nature’s most abundant and inexhaustible gifts of free energy."

Morley, Professor Edward
62; and Blinky Morgan, 62;

Moss, Reverend
91; Webb Traverse's minister

mufti
16; civilian dress worn by a person who is entitled to wear a military uniform

Murray Hill
68; in Cleveland

Museum of Museumology
149;

Music
ukulele: 15 (Miles plays it); accordian, 49; 52; 57; 126; singing, 138; in The Inconvenience, 140; 160; 163; 178;

Muspellheim
128; fire