We have dug down through the geologic epochs of discrimination, and have examined the living varieties. The predominant forms have changed, but none of the species we find among the fossils of the earlier strata have become extinct, though some of them, ticket scalping and the direct rebate for instance, are much less in evidence than formerly.
Passes[[344]] and other personal discriminations[[345]] still prevail, and the assortment of favoritisms in freight traffic is larger than ever. Here is a list of more than 60 forms of discrimination that are now in use, many of them constantly and others as occasion may demand:—
Passes.
Ticket brokerage.
Private passenger-coaches.
Gifts of stock.
Tips on the market.
Secret rates.
Rebates.
Elevator and compress fees.