As to the botanical class, which now numbers thirty-seven, I have given two more lectures, for I lectured both Thursday and Friday, on the last occasion, which was a sort of recapitulation quite without notes, as a trial. I am convinced that for lectures with much illustration I must have only heads and leading ideas written; for others, I will write nearly in full. I saw Miss Lowell ... the day before my first lecture, and promised to call upon her very soon if I succeeded well. Meeting her the other evening at Professor Sparks’s, she reproved me for not keeping my word. I very honestly and sincerely replied that I had not succeeded well, and was waiting until I was better satisfied. Quite to my surprise, I found that the class, at least those she had seen, her great-nephew and others, were well pleased with it. I will not repeat their expressions, as retailed to me by Miss Lowell, because I cannot but suspect that young Lowell may have been trying to humbug her. I feel I have so far acquitted myself very poorly as a lecturer; but I am sustained by the firm conviction that I shall in the end do very well, for a common college class. TO JOHN TORREY. May, 1843. I have been speaking about the bones of the Zygodon, and there is a disposition to get up a subscription in the Natural History Society and buy them, if still for sale, the price not too great, and if Dr. Wyman, on seeing them, recommends the purchase. Do you know the price? And whether they can still be seen in New York, at Carey’s storehouse? The Boston zoölogists are far from praising De Kay’s Report. I heard Silliman on electro-magnetism the other evening (which hardly belongs to chemistry): great show of experiments; lauded Henry finely. He is finishing off with galvanic deflagration. Will Frémont go west this year? So Mr. Carey is going to Buffalo. Occupation will be the best thing for him; but we shall miss him in New York.... Monday afternoon, 9th May. I have a few of Frémont’s plants up from seeds. The two pine-trees and the Pyxidanthera were received in good condition, to my great wonderment. Pyxidanthera is in full bloom, and a drawing of it nearly finished (as well as of Oakesia, about which I have some new matters that are curious) by the eldest Miss Quincy, whom I have pressed into the service.... Rhododendron Lapponicum, from the White Mountains, is just bursting into flower. I am building rock-work, but we get on slowly. All the work of the Garden comes together this spring, and all in a heap. TO W. J. HOOKER. CAMBRIDGE, 30th May, 1843. ... The community here are very liberal and public-spirited. They have just given by subscription $25,000 for a telescope, etc., for our observatory. The college have given me the use of seven or eight acres of land lying around the observatory, finely situated and diagonally opposite the Botanic Garden, as an addition.[133]