To provide for the repayment from earnings of the capital invested in a mining property and expended in development, and to provide for the depreciation in value of the plant and equipment, an amortization fund must be accumulated during the life of the mine; or, if it be desired to continue the business of mining elsewhere, a similar fund must be created for the purchase, development and equipment of a new property to take the place of the original deposit when that shall be exhausted.
With regard to the earnings of nurses in general, the salaries paid in hospitals have already been mentioned; for private work the scales in force at different institutions vary considerably, according to the other advantages and benefits provided.
At some the nurses receive all their own earnings, minus a percentage deducted for the maintenance of the institute; at others they are paid a fixed salary, as a rule from £25 to £30 a year, plus a varying percentage on their earnings or a periodical bonus according to length of service.
This may be taken to indicate the possible earnings of trained nurses working independently, as they usually do in America.
The condition of the Indians on the plantations is often akin to slavery, owing to the system adopted by some planters of making payments in advance; for the Indians soon spend their earnings, and thus contract debts which can only be repaid by long service.