Arm in the solitude of their maintenance £2,600 £115,000 Revenue £1,230,000 £9,516,000 National expenditure £1,637,000 £8,555,000 Post offices 209 21,551 Post roads (miles) 5,642 178,670 Revenue of Post-office £15,650 £1,130,000 Mileage of mails ---- 46,541,423 Canals (miles) 0 15,000 Public libraries (volumes) 0 2,000,000 If they be found at the front on to the Age of thirty years, and in.