NH Octob. 27, 1822.
My dear sir,
I have recd yours of the 17th with the map & description. Both do you much honour & I presume the map owes its delicacy & beauty to a hand more delicate than yours or mine. In the tablet of colours I perchance omitted to put down the brown for the coal formation. It is left white in the tablet although it is coloured in the map.
What you have sent of the memoir will make nearly 40 pages of the Journal; if I understand you correctly there will be nearly as much more of the geological part, say 35 printed pages = 75. The geol. & mineral. department of the Journal has varied from 35 to 85 or 90 pages ^ per no. I have now on hand for the most no about 30 pages, most of which is promised for the next no; this with yours will make about 100 pages, that is, half the no. I hardly think it would answer to go beyond this as the lovers of the other branches might complain. I see then no way but to divide your whole production into two parts. Part I, I will endeavour to insert entire in this no. viz the whole of the Geology with all the drawings except the fasciculate. Part II, that is the mineralogy
Benjamin Silliman writes to Edward Hitchcock about how he will incorporate Edward's pieces into the next few volumes of his American Journal of Science. He also praises Edward's wife Orra on her rendering of a map. By this time, the men were five years into their friendship and professional relationship, and they communicated with candor and ease. At the end of this letter, Silliman sends his respects to "Mrs. Hitchcock, whom I cannot but regard as a coadjutor," an acknowledgement of Orra's contributions as an artist to her husband's works.