I also visited the Observatory, which was built in 1730 by Rajah Jey Singh, of Ambheer, a favourite minister of Mahomed Shah, and a great lover of astronomy. The troublous political events of this period, prevented the completion of this noble work. It is now dilapidated, and is surrounded by buildings, which have shared a similar fate, some more, some less in ruin. I saw, however, enough of the general design, and of the genius of its founder. The sun-dials and quadrants are on an immense scale, and rest upon huge red sand-stone arches. The fine tomb of Zufder Jung, which was built in 1754 at a cost of £30,000, stands in the midst of an extensive garden. The King of Lucknow caused a suite of apartments in one of the large summer-houses of this garden, to be fitted up at a considerable cost for the convenience of travellers. The Mausoleum, is like many of the Delhi edifices, of white marble and red sand-stone, in alternate perpendicular stripes. The cornices of the building are ornamented with small towers and graceful minarets. April 8th.--Being anxious to obtain a good panoramic view of the city, I hired a horse and buggy, and went to the celebrated Cootub Minar, which, as I said before, is situated about seven miles from the gates of Delhi. This wonderful and gigantic monument stands in the midst of ancient buildings and temples. Some, dating from the times of the Hindoo dynasty, and dedicated to the service of Buddha, indicate the great prosperity of that era, and the perfection which the arts had attained. The richly sculptured friezes, delineating events descriptive of their history and religion--combats--processions--and ceremonies--are alike interesting and instructive.