"C. H.," Pembroke, Genesee Co.,N. Y.,writes: " I sowed this spring on a hot-bed three varieties of tobacco - Conn. Seed Leaf, Hayne's and Wilson. It came up well, and what seems strange to me, there is not one plant of tobacco in the lot. They are all petunias and now in bloom. Of the white variety there can be no mistake about the seed, as I grew and saved the seed myself. Can you account for the change ? Did you ever know of the like ? or is it a common thing, though it may seem so very strange to me ? You may say that I must be wrong about the seed, but there is positively no mistake, in the seed or otherwise. I would be glad of an explanation".

[The genus to which tobacco belongs, Nicotiana, is very closely allied to Petunia - indeed some Petunias were once referred to Nicotiana by some good botanists. Still, the change in the wholesale way described by our correspondent is so very unlikely, that, notwithstanding his certainty that there has been no mistake, we should advise him to try it again. Sow some of the petunia seed and see if it go back to tobacco; and sow some tobacco and note if it changes toward petunia. If there be no mistake about the wholesale change this season, there will surely be some tendency that way next year. - Ed. G. M].