At Plate XX., fig. 2, it may be seen how 4667 B.C. the figure of Orion very accurately marked the equinoctial colure, and this fact may incline us to suppose that the giant hunter--so often, according to Grecian legend, in conflict with the powers of high Heaven--was depicted about this date by ancient astronomers to represent the strength of the adverse powers which, at the _autumnal_ season in the mythologies of northern nations, appear in combat with, and temporarily triumphant over, the powers of light. In favour of the high date here claimed for the imagining of Orion’s figure under very much the same form as that still depicted on our globes, there are some indications to be observed in the Sanscrit names of the Nakshatra, which contains the stars, λ φ₁ φ₂ Orionis--_i.e._, the stars marking the head of Orion. This Nakshatra is known in Hindu astronomy under two quite different names--viz., Mṛigashirsha and Agrahayani. The Sanscrit word, Mṛigashirsha, means literally “Wild beast’s head,” and B. G. Tilak, in his work, _The Orion; or, Researches into the Antiquity of the Vedas_, basing his opinion upon many ingenious and recondite arguments, supposes that ancient Indian astronomers gave the name of Mṛigashiras to the stars of Orion, which they imagined portrayed in the sky an “Antelope’s head” transfixed by an arrow--the arrow being marked by the three bright stars so well known to us as Orion’s Belt. Mṛiga, there can be no doubt, carries often with it in Sanscrit literature the meaning of “antelope”: but Tilak expressly says at p. 97, “Though I have translated the word _Mṛigashiras_ by ‘Antelope’s head,’ I do not mean to imply that _Mṛiga_ necessarily meant ‘an antelope’ in the Vedic literature.” Again, at p. 151, he says: “The word _Mṛiga_ in the Rigveda, means according to Sâyaṇa both a lion and a deer.” Again, as to the other name of the Nakshatra--Agrahayani--it has the meaning of “first-going” (of the sun) understood. In a long dissertation on this name, Tilak contends that it marked an important point in the annual course of the sun, and then further seeks to derive the Greek name Orion from the Sanscrit word, Agrahayani. Of the value of the etymological arguments advanced, I am quite unable to judge, but on astronomic grounds it would not seem an improbable derivation. But the acceptance of Tilak’s contention as to the derivation of the name Orion would make it reasonable to suppose that not only the name but also the configuration of the constellation might, in the astronomy of the Greek and Indian nations, resemble each other; and thus we should be more ready to believe that Mṛigashirsha referred to the lion’s head on Orion’s arm, and not to an “antelope’s head”--a head which, as depicted by Tilak at p. 100, would alone have filled nearly all the space in the heavens occupied in the Grecian sphere by the huge figure of the giant hunter known to us as Orion.