'Copy of a letter addressed to Col. Sykes, East India House, by Dr. Impey, dated Indore, 10 June 1849' in which Impey writes that in the same mail he has sent Sykes a paper on the colossal Jain figure on the 'Satpoonah Range'. He is unable to decide which of the Jain figures it represents. The inscriptions to be found are in Sanskrit. He compares his discovery to that of Captain Vodel's written about in the Transactions of the Society. He also writes of visiting the caves at Awkya Tankye.

'Copy of a letter addressed to Colonel Sykes by Captain Kittoe (no place or date)' in which he writes that he has just returned from a tour along the bank of the Gandak. He has spent several months examining inscriptions made by Captain R.W. Ellis, Political Assistant in Bundelkund. He is currently having them translated into English. He is becoming convinced that ancient Pali was the first written character in Central India.

Kittoe also writes about the architectural details and sculpture discoveries that he has been making of both Buddhist and Brahmanical buildings giving descriptions of them and their inscriptions. There are also some pencil sketches with the copy of the letter to further aid his descriptions. He writes of having been in Allahabad as well as Bupau, Patna and back to the Benares (Varanasi) area.

'Copy of a letter addressed to Capt. Reynolds by Dr W.H. Bradley, dated Camp [Humber, near Soulah], 25 January 1830' in which he asks Reynolds to pass on to Colonel Sykes the information he writes regarding the Aurangabad Caves. He then continues to provide the information and his opinion upon the caves.

'Copy of a letter from Capt. Gill, addressed to Col. Sykes, dated at Adjuntah, 16 October, 1849' in which he writes of his concern that his paintings had not arrived when Sykes had written to him. He has continued to copy the cave paintings and writes of those and inscriptions. He also writes concerning Professor Wilson's remarks upon his paintings and of some things Wilson seems to have missed.

'Extract from a Letter addressed to Col. Sykes by William A. Fallon Esq. dated Elephanta, 16 February 1852' in which he writes of sending into the Government a large painting of the altar piece at Elephanta on a canvas nearly 7 feet long and 2 feet 2 inches high. He also sent other plans and elevations drawn to scale. He writes that Lord Falkland is pleased with the painting.

Letter from Captain Thomas John Newbold to Richard Clarke, Secretary of the Royal Asiatic Society, regarding primitive burials found near Chittoor. He is sending some specimens from the sarcophagus and asks Clarke to forward them to Professor Owen.

This series contains all the papers donated to the Royal Asiatic Society by Neil Peppé. There is correspondence with William Claxton Peppé, lists of the excavation finds, some site plans, and a draft of Peppé's article for the Journal of the Royal Asiatic Society.

Letter from Vincent Arthur Smith in Gorakhpur to William Claxton Peppé in Birdpore in which Smith finds Peppé's discoveries 'very interesting'. He hopes he will write a detailed account of his excavations with plans and photographs and asks him to survey the whole site. He warns Peppé that he must report his find officially. He believes the stupa to be 'of early date – anterior to the Christian era'. Continuing on 20 January, he adds that he is busy in court until 26 January but could come out to visit him by train on 27 January. Handwritten 8 sides, dated 19-20 January 1898.

Letter from Dr. Alois Anton Führer at Camp Kapilavastu to W. C. Peppé in Birdpore, in which Führer congratulates Peppé on his excavation and asks him to look for an inscription. He accepts Peppé's invitation to see the excavation but cannot get away 'even for a day' because of the damage the coolies would do to his own excavation work. He hopes to come on 15 February and offers to take over Peppé's excavation. Handwritten, 3 sides, dated 19 January 1898.

Note from William Claxton Peppé in Birdpore to Vincent Arthur Smith in Gorakhpur, in which Peppé tells Smith he has found some writing on one of the bowls, adds his transcription in pencil, under which is a transliteration in Smith's hand. On reverse is Smith's reply in which he writes that the relics appear to be those of the Buddha himself. Handwritten, 2 sides, dated 19 January 1898.