Addresses Delivered at the Triennial Celebration ..., Volumes 18-231879 |
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Page 63
... Hall showed in operation before this society his system of railway signals . Automatic electric signals were previously but little known in this country , and still less so abroad . Mr. Hall believed he had a system perfectly adapted to ...
... Hall showed in operation before this society his system of railway signals . Automatic electric signals were previously but little known in this country , and still less so abroad . Mr. Hall believed he had a system perfectly adapted to ...
Page 104
... hall of the magis- tracy , and is supplied , as a symbol of its use , with a big drum . It is principally for summer use , and across the court - yard , which separates it from the dwelling itself , are wafted the sounds from the ...
... hall of the magis- tracy , and is supplied , as a symbol of its use , with a big drum . It is principally for summer use , and across the court - yard , which separates it from the dwelling itself , are wafted the sounds from the ...
Page 116
... hall in the museum at Salem , measuring about one hundred feet by forty feet , and some twenty - one feet high . The first heater was made by constructing a box about thirteen feet high and four feet wide , open at the bottom , and ...
... hall in the museum at Salem , measuring about one hundred feet by forty feet , and some twenty - one feet high . The first heater was made by constructing a box about thirteen feet high and four feet wide , open at the bottom , and ...
Contents
SUBJECT | 4 |
Discussion on the paper presented at | 11 |
A WELLINGTON | 55 |
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acid alizarine amount angle aniline apparatus ARTS was held boiler Boston bridge building canal cent channel cholera circuit color columns connected construction cost cotton cylinder deflection diameter dynamometer Edward Atkinson effect electric engine experiments feet fibre fire glass harbor heat inches increased Institute instrument introduced invention iron Komotau lactic acid lamps length light load machine manufacture material measure meeting metal method miles mill minutes Mystic River naphtha Nicaragua obtained pass pintle pipe plates pounds practical present President pressure produced Prof Professor Rogers pulley pump railway signals rest revolutions per minute River roof Sectional area sewage sewers shown side signal SOCIETY OF ARTS sprinklers square inch steam steam engine steel strength surface temperature tests tion train tube upper harbor valve vessel vibration weight WHITE OAK wire yellow pine