[Francis] Boott unexpectedly returning to England. He has invited Boott to work on his "Flora of New England"; as yet they are novices in the science and have much to gain from Smith's advice; similarities and differences of New England and European floras. State of science in USA "rapidly progressive" but not yet advanced enough to support the "luxuries of science", such as coloured engravings of American plants; he is making the experiment in his "Medical Botany", sends plates via Boott. Sends pencilled sketch of an 'Orchis grandiflora', close to 'O. fimbriata'. Corrêa is Portugeuse Minister Plenipotentiary at Washington. Requests that the plants he sent Smith for determination be reserved for his and Boott's flora; some have since been published in Elliott's; further query on the two 'Rubus'.