The 3rd Edition of Tyndall 's book Sound , published in 1875 , details his research work on the acoustic transparency of the atmosphere .
An index of 19th century scientific research journals has John Tyndall as the author of more than 147 papers , with practically all of them dated between 1850 and 1884 , which is an average of more than four papers a year over that 35-year period .
John Tyndall