(b) The commission shall have the power, and be charged with the duty, of supervising, regulating and controlling all transportation and transmission companies doing business in this State, in all matters relating to the performance of their public duties and their charges therefor, and of correcting abuses therein by such companies, and to that end the commission shall, from time to time prescribe, and enforce against such companies, in the manner hereinafter authorized, such rates, charges, classifications of traffic, and rules and regulations, and shall require them to establish and maintain all such public service, facilities and conveniences, as may be reasonable and just, which said rates, charges, classifications, rules, regulations and requirements, the commission may, from time to time, alter or amend.  All rates, charges, classifications, rules and regulations adopted, or acted upon, by any such company, inconsistent with those prescribed by the commission, within the scope of its authority, shall be unlawful and void.  The commission shall also have the right at all times to inspect the books and papers of all transportation and transmission companies doing business in this State, and to require from such companies, from time to time, special reports and statements under oath concerning their business, it shall keep itself fully informed of the physical condition of all the railroads of the State, as to the manner in which they are operated, with reference to the security and accommodation of the public, and shall, from time to time, make and enforce such requirements, rules and regulations as may be necessary to prevent unjust or unreasonable discriminations by any transportation or transmission company in favor of, or against, any person, locality, community, connecting line, or kind of traffic, in the matter of car service, train or boat schedule, efficiency of transportation or otherwise, in connection with the public duties of such company Before the commission shall prescribe or fix any rate, charge, or classification of traffic, and before it shall make any order, rule, regulation or requirement directed against any one or more companies by name, the company or companies to be affected by such rate, charge, classification, order, rule, regulation or requirement, shall first be given, by the commission, at least ten days’ notice of the time and place, when and where the contemplated action in the premises will be considered and disposed of, and shall be afforded a reasonable opportunity to introduce evidence and to be heard thereon, to the end that justice may be done, and shall have process to enforce the attendance of witnesses, and before the commission shall make or prescribe any general order, rule, regulation or requirement, not directed against any specific company or companies by name, the contemplated general order, rule, regulation or requirement shall first be published in substance, not less than once a week for four consecutive