The buildings here used by the State are the West Shaft house, the New Shaft building, a blacksmith shop containing two forges, a powder-house, a horse-shed, ash-house and tank-house. The buildings owned by the State and leased to operatives are a boarding-house and four old shanties built by H. Haupt & Co., four first-class shanties, eight common shanties, and a double cottage. The buildings at the West End, are connected on the books with those at the West Shaft, and will be here enumerated. They consist of a carpenter's shop, time-keeper's office, a blacksmith shop containing one forge, tool-house, powder-house, horse-shed, brickyard shed, brickyard, engine-house, artesian wells Nos. 3 and 4, buildings, and two-thirds of a barn, which are occupied by the State. One boarding-house, store, one-third of a barn, the Harrington farm-house, barn and out-buildings, twenty-seven common shanties and brickyard boarding shanty. These buildings, with part of blacksmith shop, part of carpenter's shop and time-keeper's office, are rented to operatives and to Mr. Farren, the contractor for constructing the brick arch. The cost of the structures, as reported in July, at both places, was $35,550 94 As reported in November, 40,010 13 This large increase was mainly occasioned by the construction of a double cottage and necessary buildings at the brickyard and West End. The amount of rents at these two points is $2,462.60 per annum. Fifteen of the tenements at the West End are leased to Mr. Farren, in accordance with his contract. The working force at the West Shaft in July was,-- Engine-men and firemen, 4 Carpenters, 2 Blacksmith and helpers, 8 Masons, 2 Truckman, 1 Pump-man, 1 Manual laborers, 105 --- Total, 123 November 1st the working force at this point, including one resident civil engineer, was 103