. 28.] TO JOHN TORREY. 151 



Professor Royle, as the agent of India people, I be- 

 lieve, offers me seeds from Himalaya Mountains, 

 received, and still to be received, from the government 

 collectors, in exchange for those of useful and inter- 

 esting North American plants, which they are desirous 

 of introducing into India. But as I can't attend to 

 it until another season, he kindly offers to send to you 

 a portion of the seeds just received, and to ask you to 

 distribute them in such way as will be most usef id, and 

 ask those you give them to (say Downing, Hogg, Dr. 

 Wray, Dr. Boykin, etc., and some one in the valley of 

 the Mississippi or Arkansas) to collect seeds of trees, 

 etc. (you can suggest what would be most desirable), 

 and send them to London, whence they will be sent 

 in the mails overland to India. As I fear I shall not 

 see Royle again I shall write him a note, telling him, 

 as I promised, how to send to you. 



I saw Dr. Sims' herbarium, at King's College. I 

 want to look at it to certify a few early " Botanical 

 Magazine " plants. 



Brown came to the museum this morning with a 

 copy of a curious late paper of Schleiden (which I 

 had seen before) on the Development of the Embryo, 

 with a parcel of his own notes on the same subject 

 made in 1810, 1812, 1815, etc., which did not alto- 

 gether correspond. Bi'own thinks much of Schleiden 

 as an observer. He read me many of his old notes, 

 and the subject took him to speak of his discoveries 

 with regard to the embryos of Pinus. To explain 

 to me as he went on he drew the diagram on the 

 inclosed slip of paper, and pointed out to me how to 

 observe in our species of Pinus. This will refresh 

 my memory as to all he told me, so pray keep it 

 safely. There is much very curious matter now afloat 



