We have now followed the line of organization and management through the physical maintenance of the road and rolling stock, the safe handling of the trains, the establishment of rates, and solicitation of business. It only remains to show how the revenue is collected, how the expenses of operation are paid, and all statistics of the business prepared. These duties are usually united under charge of an officer called the comptroller, general auditor, or some equivalent title. His principal subordinates, whose duties are indicated by their titles, are the auditor of receipts, auditor of disbursements, local treasurer, paymaster, and clerk of statistics.

The record of a single shipment of freight will illustrate methods, so far as limits will permit. A shipper sending freight for shipment sends with each dray-load a "dray ticket" in duplicate, showing the articles, weight, marks, and destination. If he has prepaid the freight, or advanced any charges which are to be paid at destination, it is also noted on the dray ticket. When the drayman reaches the outbound freight depot with his load, he is directed to a certain spot where all freight for the same destination is being collected for loading. A receiving clerk checks off his load against the duplicate dray tickets, keeps one and files it, and gives the drayman the other, receipted. In case of any loss arising afterward, the original dray ticket, made by the shipper himself, with his marks and instructions, becomes a valuable record. When the entire shipment has been delivered at the loading point, the shipper takes the dray tickets representing it to the proper desk, and receives "a bill of lading." This bill of lading is made in triplicate. The original and a duplicate are given to the shipper. He keeps the last and sends the former to the consignee. It represents the obligation of the railroad to transport and deliver the articles named on it to the person named, or his assignee. It is negotiable, and banks advance money upon it. But the shipper may still, by a legal process, have the goods stopped en route should occasion arise, as, for instance, by the bankruptcy of the consignee. The goods are also liable for garnishments in certain cases, and there is much railroad and commercial law which it behooves the officials interested to be well posted in. When the goods arrive at destination the possession of the bill of lading is the evidence of the consignee's right to receive them.

Now we will return to the shipment itself and see how it is taken care of. The whole structure of the system of collecting freight revenue, holding accountable all agents who assess it and collect it, dividing it in the agreed proportions between all the railroads, boats, bridges, wharves, and transfer companies who may handle it in its journeys, even across the continent, and the tabulating of the immense mass of statistics which are kept to show, separately, the quantities of freight of every possible class and variety, by every possible route, and to and from every possible point of destination and departure—all this system, neither the magnitude nor the minute elaboration of which can be adequately described within limits, is founded upon a paper called the way-bill.

The theory of the way-bill is that no car must move without one accompanying it, describing it by its number and the initials of the road owning it, and showing its points of departure and destination, its entire contents, with marks and weights of each package, consignors and consignees, freight and charges prepaid or to be collected at destination, and the proportion of the same due to each carrier or transfer in the line. And not only must a way-bill accompany the car, but a duplicate of it must be sent immediately and directly, by the office making the original, to the office of the auditor of freight receipts. If the railroad is a member of any association, as the Trunk Line Association in New York, another duplicate is sent to its office, that it may supervise all rates, and see what each road is doing. The sum of all the way-bills is the total of a road's freight business. To facilitate taking copies they are printed with an ink which will give several impressions on strong, thin tissue-paper, forming "soft copies," while the "hard copy," or original, goes with the freight to be checked against it when the car is unloaded.

And while the original way-bill fulfils its important function of conducting the freight to destination and delivery, the duplicate which was forwarded directly to the auditor of freight receipts has no less important purposes. It is the initial record that freight has been earned, and it shows which agent of the company has been charged with its collection. Before making any entries from it its absolute correctness must be assured. For this purpose all its figures are first checked by a rate-clerk, who is kept constantly supplied by the traffic department with all current rates, classifications, and percentage tables by which through freights are divided. These way-bills, coming in daily by hundreds and thousands, are then the grist upon which the office of the auditor of receipts grinds, and from which come forth the accounts with every agent, showing his debits for freight received, and the consolidations showing the freight earnings of the road. Agents remit the moneys they collect direct to the treasurer, who makes daily reports of the credits due to each one. A travelling auditor visits every station at irregular intervals and checks the agent's accounts, requiring him to justify any difference between his debits and credits by an exhibit of undelivered freight.

The passenger earnings are obtained from daily reports by all conductors of their collections, and by all ticket-sellers of tickets sold. These reports are also checked by a passenger rate-clerk, and the travelling auditor frequently examines and verifies the tickets reported by agents as on hand unsold.

After the auditor of receipts has finished with the way-bills and ticket reports, they go to the statistical department, where are prepared the great mass and variety of statistics required by different officers to keep themselves thoroughly posted on the growth or decrease of business of every variety, and from and to every market reached by the road. Finally, the way-bills are filed away for reference in case of claims for overcharges, or lost or damaged goods.

The auditor of disbursements has supervision of all expenditures of money, which is only paid out by the paymaster or treasurer upon vouchers and pay-rolls approved by proper authority. The vouchers and pay-rolls then form the grist upon which his office works, and from which are produced the credits to be given all officers and agents who disburse money, and the classified records of expenses, and comparison of the same with previous months and years, and between different divisions.