i. 20 September 1839 - Hamburg - Jenisch, Publications, Hunneman and dahlia plants. (Translation by W.P.).
ii. 16 February 1841 - Hamburg - Accounts. Defects in Botanical Magazine.
iii. 20 April 1841 - Hamburg - Acknowledges letters and packets for Baron von Ludwig. Seeds and new plants wanted. Book for Dr. Roberts Brown. Mentions Preiss, John Edward Gray.
iv. 1 June 1841 - Hamburg - Publications. (Note by W.P. on publications, letters. Parcel for Prof. Esenbeck.).
v. 3 August 1841 - Hamburg - Asks that W.P. aid a visitor.
vi. 17 May 1842 - Hamburg - Reports on fire which affected friend Röding. Publications. Herr Preiss to visit W.P. Greetings to Hooker, Brown, Lindley and Bentham. (W.P. note "promised my assistance to Preiss".)
vii. 19 November 1842 - Hamburg - Publications.
viii. 23 November 1842 - Hamburg - Sending smoked meat for W.P.'s wife and Lady Hooker. Publications.
ix. 23 December 1842 - (London) - (Copy of letters from W.P. Apologises for delays caused by removal of Frith Street. Publications and thanks for Hamburg Beef.).
x. 10 April 1843 - Hamburg - Brief note.
xi. 12 September 1843 - Hamburg - Dr. Preiss awaiting news of specimens from Swan River. Publications. (W.P. answers: Accounts. Accounts. Publications. Nothing arrived for Dr. Preiss. Will make up a parcel for Hamburg once a month in 1844.).
xii. 30 January 1844 - Hamburg - Publications and payment to Bentham for dried plants.
xiii. 30 October 1844 - Hamburg - Publications. Accounts. Reply to his question to Hooker.
xiv. n.d. - Hamburg - Publications. Dr. Freund, Pückler-Muskau.