Diary of Joseph F.C. Rock Volume 10 [11 on spine]; Konka-ling to Li-chiang, 1928 entitled 'My journey to Mt Konka (Konkaling) from Muli, S.W. Szechuan. Diary of Joseph F. Rock, Sunday June 18th 1928 to October 24th 1928. Vol.X.'

Diary of Joseph F.C. Rock Volume 11 [12 on spine]; Li-chiang to K’u-lu and Yung-ning, 1928-1929, entitled ‘Diary of Joseph F. Rock Volume XI, Journey from Nguluko – Likiang to Tatsienlu from November 8th 1928 to February 9th 1929.’
There is a hand drawn map on one of the pages.

Diary of Joseph F.C. Rock Volume 12 [13 on spine]; Yung-ning to Ta-tsien-lu [Kanding], 1929 entitled 'Diary of Joseph F. Rock, Volume XII, from February 13th 1929 to June 3rd 1929.
Contains loose notes and maps.

Diary of Joseph F.C. Rock Volume 13 [14 on spine]; Minya Konka to K’u-lu and Yung-ning, 1929 entitled 'Diary of Joseph F. Rock, from June 5th 1929 to August 31st 1929, Volume XIII [scored out] XIV'.
Some of the pages contain hand drawn maps.

Diary of Joseph F.C. Rock Volume 14 [15 on spine]; Nyorop’u to Nv-lv-k’o Lu-feng, 1929-1930 entitled 'Diary of Joseph F. Rock, Volume XIV, from September 1st 1929 to January 31st 1930.'
The diary contains a map drawn inside, extensive notes and loose notes on Naxi pictograms (inserted between pp. 188 and 189) and a photograph of Rock with Chinese and Western gentlemen.

Diary of Joseph F.C. Rock Volume 16; Yunnanfu to Lichiang A-ts’an-gko, 1931 entitled 'Diary of Joseph F. Rock, Vol. XVI, from January 1st 1931 to May 1st 1931'
The diary contains a pressed flower and a loose photograph of Joseph Rock taken by Edgar Snow in 1930.
There are maps drawn on some of the pages.
The diary contains information about Naxi pictograms.

Diary of J.F. Rock Volume 2; Ch’eng-tu to Choni, 1925
Diary is titled: "Szechuan to Kansu, Vol. II; Diary of Joseph F. Rock,
Director Harvard – Arnold Arboretum Expedition from
Chengtu to Choni, March 17th to May 23rd 1925."
The diary includes loose papers including list of Choni lamaseries in Chinese and lists and maps written on some of Rock’s Nakhi [Naxi] dictionary index cards

Diary of Joseph F.C. Rock Volume 23; March 20th 1932 – April 29th 1933
Includes:
Transcription of page from Naxi Dongba manuscript with translation by Arie Kok telling the story of the flood, pp. 111-115
Notes on Tibetan deities (pp.117-148)
Extracts of a Tibetan-English dictionary (pp.148-155)
Photograph of Rock age 5 with father and sister, 1889. (back cover).
Obituary of Ralph A. Graves (1882-1932), Rock's 'friend and counsellor' (pp.296-297)

Diary of J.F.C. Rock,1925 entitled “Volume III, Diary of Joseph F. Rock, Director Arnold Arboretum Harvard University Central Asiatic Expedition from May 26th to August 31st 1925 inclusive. Locations travelled between include, Cho-ni to T’ie-Pu and Lan-Chou.
Includes loose sheets of notes.

Diary of J.F. Rock Volume 4; Lan-Chou to Kokonor Babo, 1925
The diary is entitled “Kansu Province, Diary Vol. IV of Joseph F. Rock Director Harvard Arnold Arboretum Asiatic Expedition from August 31st in part to November 16th 1925. From Hsiangtang to Kokonor Babo and return to Sining.
Includes sheet of Chinese writing on Chinese paper and loose notes, including lists [of plants? Photographs?]