[34] Private bills are delivered to the clerk instead of to the speaker. The distinction between a public bill and a private bill is that the former deals with matters of general interest to the public, while the latter deals with matters of interest to a single individual or a small class. An example of a public bill is one regulating commerce; an example of a private bill is one granting a pension to a particular individual, or settling a claim of a person against the government. A distinction is also made between a bill and a resolution. A bill deals with matters of a more fundamental and permanent character, while a resolution deals with matters of a more temporary and transient nature. Resolutions are of two kinds: joint and concurrent. A joint resolution is passed like a bill and requires the approval of the President but is cast in slightly different form and is used for making small appropriations, the creation of commissions, proposal of amendments to the Constitution, resolutions to admit new states, ordering of printing, and the like. A concurrent resolution is used for expressing the opinion of Congress on some question of interest to that body alone and is not submitted to the President for his approval. _Reference to Committees._--The next step is to refer the bill to a committee for consideration, and in the meantime it is printed and placed on the desks of members. Reference to the appropriate committee is usually made by the presiding officer, though the house may direct that it shall be referred to a particular committee. Some idea of the mass of legislative projects referred to the committees may be gained from the fact that in the sixtieth Congress 27,114 bills and resolutions were introduced into the two houses, and that of these, 7,839 were reported by the committees to which they were referred. We have here a good illustration of the necessity of the committee system, since it would have been a physical impossibility for either house as a whole to have considered even slightly so many bills. The committees sift out of the mass of proposed legislation such measures as they think worthy of enacting into law, and report their recommendations to the house as a whole.