Paid to the railroads for railway postoffice cars $ 4,567,366 Paid to the railroads for mail transportation 43,588,013 ----------- Total $48,155,379 Ton mileage of mails handled by railroads 484,683,135 Pay per revenue ton mile, including railway postal pay car 9.94c Pay per revenue ton mile, excluding railway postal car pay 8.99c R.P.O. Apartment. Total. Number of cars (Postoffice Department Report) 1,342 3,568 4,910 Average length (special mail weighing 1907), feet of mail apartment 59 27 -- Equivalent full R.P.O. cars 1,342 1,633 2,975 Miles run per car per annum (experience of U. P. System and Southern Pacific Company) 100,000 60,000 -- Total equivalent R.P.O. car miles 134,200,000 97,980,000 232,180,000 Miles traveled by R.P.O. clerks (miles reported as traveled by crews multiplied by average number of men per crews) -- 629,778,443 Gross ton mileage-- Equivalent railway postal clerks, 232,180,000 miles, at 45 tons per car 10,448,100,000 Ton miles of clerks at 160 pounds per man 50,382,275 Revenue ton miles of mail, including pouch mail 484,683,135 -------------- Total gross ton miles(a) 10,983,165,410 Average weight of mail per equivalent full R.P.O. car (tons)(a) 2.09 Average weight of clerks per equivalent full R.P.O. car (tons) .22 Average weight of car per equivalent full R.P.O. car (tons) 45.00 Rate of mail and R.P.O. car pay per gross ton mile (cents) 0.438 Ratio of paying to dead load(a) 1 to 21.7 (a) No portion of mileage or weight of storage cars or cars handling pouch mail has been considered. PASSENGER SERVICE OTHER THAN MAILS.