Every steam vessel navigating any waters of this State and carrying passengers, shall be equipped with boats as follows:

1. (a) If of five hundred tons measurement, one first-class life-boat and one row-boat, twenty-five feet long by seven wide, each capable of carrying fifty persons; and at least one other good row-boat.
2. (b) If of two hundred and fifty and less than five hundred tons measurement, at least two ordinary row-boats.

3. (c) If of less than two hundred and fifty tons burden, at least one small row-boat.

   The boats shall be so attached that they can be launched at any time for immediate use.