MYSCHKIN, a circle of the Russian province Jaroslow, between 37. 33. and 38. 46. east longitude, and 57. 25. and 58. 4. north latitude. It contains one city, and 701 villages, distributed into fifty-five parishes. It is watered by the rivers Wolga, Karasitschna, Kadka, and Sudka, and is moderately fertile, maintaining a population of 71,390 persons. The capital, of the same name, is situated on the Wolga, 460 miles from St Petersburg, with some little trade by that river. Long. 55. 5. E. Lat. 57. 47. N.