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while giving the purpose of jurisprudence , SALMOND said that in a primary and generic sense jurisprudence includes the entire body of legal doctorines . It is jurisprudentia, the knowledge of law or legal skill and in this sense all law books are books of jurisprudence . By law, in this connection, is meant exclusively civil law i.e. the law of the land (law of the country) as opposed to those other bodies of rules to which the  name of law has been extended by analogy. with the use of the term science , he said in its wildest permissible sense as including the  systematised knowledge of any subject of intellectual inquiry, we may define jurisprudence as the 'SCIENCE OF CIVIL LAW'.

Thus following are the purposes of jurisprudence:

1. EXPOSITION OF LAW : That simply means that the law should be exposed firstt as to what it is and then it should be studied systematically. It is also known as Analytical approach i.e. to make an analysis and therefore this branch of study was designated as Analytical jurisprudence.

2.LEGAL HISTORY : It is also an object of jurisprudence which means we should trace and know legal history. It is also known as Historical Approach and therefore this branch of study was known as Historical Jurisprudence

3. SCENCE OF LAW: Which means that the purpose of jurisprudence is not only to make an analysis of law as it is or to trace the history of law as it has been but to know as to what the law ought to be i.e the ethical aspect and is known as Ethical Approach. In this sense this branch of study is known as Ethical Jurisprudence .

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