From Peter Collinson
ALS: American Philosophical Society
Londn March 27 
I am now so prodigiously Engagd as well in my publick business as on Account of our very great National loss the Death of the Prince of Wales that I can only acknowledge the Receipt of thy kind Letters with the Tracts Inclosed.
I have sent per Capt. Richey in the Beulah the Magazins for Febuary.
I am thy sincere friend
Prince of a short Illness an Inflammatory Fever Died the 20th Universally Lamented.5
I shall be much obliged at thy Leisure to give mee an account of the Numbers of People that annual come over for Tenn years past or more.
I am Vex’d to see J: Bartrams Journal printed with so many Faults.6 Whiston is greatly to Blame. My Friend would have Corrected the press, but to Save a little Trouble of sending It, He would do it himself.
Thy Experiments when Cave7 will think fitt to Deliver them will appear with More Advantage and Less Faults to the publick but there is no Excuseing his Delitoriness for all Has been ready for some time past only wants the small Engraving of the Instruments in thy first Letter which are but few.
There is a parcell for Jno. Bartram.
Addressed: For Benn: Franklin Esqr in Philadelphia Per the Beulah8
5. Frederick Louis, Prince of Wales, son of George II and father of George III, died after a short illness, March 20, 1751, of the bursting of an abscess in his lungs. DNB.
6. John Bartram, Observations on the Inhabitants, Climate, Soil, Rivers, Productions, Animals, and other matters worthy of Notice. Made … In his Travels from Pensilvania To Onondago, Oswego, and the Lake Ontario, In Canada. (London: John Whiston and B. White, 1751).
7. Edward Cave. See below, p. 126.
8. On the address sheet, Sarah Franklin, aged 8, has practiced writing her name; and the following words, in a hand resembling BF’s, appear: “Fire enters black side of the Compass Needle Point of Sewing Needle.” These notes may relate to experiments described above, pp. 144–5.