illustrates this straining after brevity. According to it, the composers of grammatical Sūtras delight as much in the saving of a short vowel as in the birth of a son. The full force of this remark can only be understood when it is remembered that a Brahman is deemed incapable of gaining heaven without a son to perform his funeral rites.
Though the works comprised in each class of Sūtras are essentially the same in character, it is natural to suppose that their composition extended over some length of time, and that those which are more concise and precise in their wording are the more recent; for the evolution of their style is obviously in the direction of increased succinctness. Research, it is true, has hitherto failed to arrive at any definite result as to the date of their composition. Linguistic investigations, however, tend to show that the Sūtras are closely connected in time with the grammarian Pāṇini, some of them appearing to be considerably anterior to him. We shall, therefore, probably not go very far wrong in assigning 500 and 200 B.C. as the chronological limits within which the Sūtra literature was developed.
The tradition of the Vedic ritual was handed down in two forms. The one class, called Çrauta Sūtras because based on çruti or revelation (by which in this case the Brāhmaṇas are chiefly meant), deal with the ritual of the greater sacrifices, for the performance of which three or more sacred fires, as well as the ministrations of priests, are necessary. Not one of them presents a complete picture of the sacrifice, because each of them, like the Brāhmaṇas, describes only the duties of one or other of the three kinds of priests attached to the respective Vedas. In order to obtain a full description of each
