The house of representatives uses five calendars to schedule bills, yet the schedule is often ignored. what is the purpose of special procedures to bring bills to the floor?

The purpose of special special procedures do bring fills to the floor is to allow the House to set aside predictable periods of time when it may consider various categories of proposed legislation.

This happens because the Five house calendars are not calendars in the traditional sense, thus if a measure is listed  on a calendar there is no guarantee that it will be considered on the House floor on that date.

A combination of policy, political and procedural factors ultimately lead to the choice of measures on the calendar that the leadership will schedule for consideration as well as its order.

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question - in 1827, john walker, a druggist in a small english town, tipped a splint with sulphur, chlorate of potash, and sulphid of antimony, and rubbed it on sandpaper, and it burst into flame. the druggist had discovered the first friction-chemical match, the kind we use to-day. it is called friction-chemical because it is made by mixing certain chemicals together and rubbing them. although walker's match did not require the bottle of acid, nevertheless it was not a good one. it could be lighted only by hard rubbing, and it sputtered and threw fire in all directions. in a few years, however, phosphorus was substituted on the tip for antimony, and the change worked wonders. the match could now be lighted with very little rubbing, and it was no longer necessary to have sandpaper upon which to rub it. it would ignite when rubbed on any dry surface, and there was no longer any sputtering. this was the phosphorus match, the match with which we are so familiar. according the paragraph what was the benefit of the new phosphorus match? it burst into flame when rubbed on sandpaper. it was made by mixing chemicals. it could be ignited on any dry surface. it threw fire in all directions.

answer - matches required natural chemicals