i. 27 October 1840 - Cambridge - Acknowledges Edinburgh reports, enquiries about tracts. (W.P. has note of parcel to Agardh).
ii. 15 November 1844 - Cambridge - Edinburgh Botanical Society.
iii. 28 May 1853 - Cambridge - Andersson's Plantae Scand.
iv. 11 August 1853 - Cambridge - Andersson's grasses, etc.
v. 2 May 1855 - Cambridge - Package to Sweden.
vi. 6 June 1855 - Cambridge - Parcel for Prof. Fries, S. American plants for Uppsala, etc.
vii. 7 August 1857 - Cambridge - Tubers of Lloydia. "I hope you will be careful not to publish the exact station of it (Dryas) and the rare ferns-the extermination is the rule in Wales with tourists and collectors who call themselves botanists." "I am glad you had Williams with you."
viii. 2 January 1858 - Cambridge - Volumes from the Rev.G.L.Barnwell and publications.
ix. 21 January 1858 - Cambridge - Publications.
x. 4 March 1858 - Cambridge - Plants from Dr. Schultz.
xi. 6 March 1858 - Cambridge - Worried at loss of Dr. Schultz's things. "I had thought that the fellows had known better than to try a business man like you."
xii. 25 March 1858 - Cambridge - "I have been putting together a catalogue of plants of South Pembrokeshire possibly for the Phytologist." (See no.22).
xiii. 7 June 1858 - Cambridge - Schultz. (see no.s 10 and 11).
xiv. 15 June 1858 - Cambridge - Schultz has sent archives for W.P.
xv. 17 June 1858 - Cambridge - Schultz and railway charges for parcels and how Chinnery gets hold of his parcels.
xvi. 16 July 1858 - Cambridge - Schultz's papers, Mr. Newbould.
xvii. 26 January 1860 - Cambridge - London's Mag. Nat. Hist.
xviii. 26 December 1860 - Cambridge - Publications.
xix. 27 March 1861 - Cambridge - Publications.
xx. 25 February - Cambridge - Publications.
xxi. 26 February 1863 - Cambridge - Asks for two copies of the "comparative (?) list" dearer than expected "and I take them to help the book than I really want them."
xxii. n.d. - Cambridge - S. Pembrokeshire paper (See No.12).