1. The selling price of rural and urban lots shall be calculated on the prices established in the land laws of the States of Pará and Amazonas, as a base, applicable to the nucleuses situated respectively in each state: 2. In failure of remunerating work, or when there is insufficient, the judge of the administration, to maintain numerous families, shall furnish them food, charging the same to the heads of the families, calculating this furnishing at the rate of from 2 milreis to 3 milreis daily at the highest, for adults and those over 7 years of age, and one half this for those between the age of 7 to 3 years. Art. 43. The indians and native workers localized in the agricultural nucleuses shall participate in the advantages and obligations contained in decree number 9,214, Dec. 15, 1911. Art. 44. Having finished the preparatory work for each nucleus, the lots first colonized shall be those devoted to the production of the foods necessary for the support of the hospital which is in their neighborhood, so that it can count on, from the time of its inauguration, a regular and sufficient supply of these commodities. TITLE IV Improvements and measures tending to facilitate transportation and decrease its cost in the valley of the Amazon CHAPTER I Lines of railroad transportation Art. 45. There shall be constructed in the valley of the Amazon lines of railroad transportation of two classes: 1. Large lines of transportation, making an integral part of the general line of Federal railroads, with identical characteristics and comprising the same principles. 2. Economic lines of transportation, of reduced gauge, provisionally established for easy ways of penetration, whatever may be their development, sufficient to facilitate access to and permit the exploration of the virgin seringas and the good lands for cultivation situated on the upper banks of the Rivers Xingú, Tapajóz, Branco, Negro, and others situated in the States of Pará, Matto-Grosso and Amazonas. Art. 46. Those lines belonging to the first class shall be immediately begun and constructed as quickly as possible, the following: 1. Parting from the Port of Belém (Pará) and joining the general line of railroad in Pirapóra, in the State of Minas Geraes and in Coroatá, in the State of Maranhão, with the necessary branches to unite the initial points or terminals of navigation on the Rivers Arguaya, Tocantins, Parnaluyba, and S. Francisco. 2. Beginning at a convenient point chosen on the Madeira-Mamoré railroad, near the mouth of the River Abunã, passing by the Villa Rio Branco, and the point most appropriate between Senna Medureira and Catay and terminating in Villa Thaumaturgo, with a branch to the frontier of Perú by the valley of the River Purús. Art. 47. The rules for the construction of these lines is prescribed by law, number 1,126, Dec. 15, 1903, and both shall be let at public bidding.