Chief library of emperors Russia 100 years ago

In article innovative the questions of history of Emperors public library in Petersburg from the beginning of XX c. until 1917 y. The library was the biggest in Russia, serviced many readers. In article shows influence of revolution on condition of the library. We studied the questions of libraries fund and its censored. We shows the measures of government to development of the library. We investigated of librarian work from safety of the fund. We bring the statistic about the activity of library. In article innovative fhilanthropy help to the library and problems in the period of I World War.