31.   But practical politics operates by its own rules.

32.   But the Mets are not operating by the same laws as the rest of baseball these days.

33.   But we do not believe they have human characteristics like souls and minds that think rather than operate by instinct.

34.   But this one, on the Tulalip Reservation, a commercial dump operated by local garbage magnates John Banchero and Josie Razore, had hundreds of customers.

35.   But, now that Mexico has democratic politics, the president will have to learn the ways by which it operates.

36.   Cellular networks operate by constantly determining which tower is in the best location to serve a given telephone in use.

37.   Congress used to operate strictly by seniority, but that too has been transformed.

38.   Consider the old Boeing Medical Plan operated by by King County Medical.

39.   DCR says it will have its Las Vegas and Honolulu markets operating by September or October.

40.   Dealerships basically operate by borrowing millions of dollars to buy cars from the automakers, and then repay their loans with the money they collect from selling cars.