The former is a bill of a public nature introduced by a private member, whereas a private bill is one dealing only with a matter of private, personal, or local interest.
Being the component part of the government, of a public nature, the doctrine that private parties can acquire rights in the nature of a contract that cannot be disturbed without their consent is not tenable.
The state has a part in shaping great industries of a public or semi-public nature, such as waterworks, railroads, and the postal system.
The above list will hopefully provide you with a few useful examples demonstrating the appropriate usage of "public nature" in a variety of sentences. We hope that you will now be able to make sentences using this group of words.