Mr. Robert Douglas has issued a catalogue in which the nomenclature fixed by the recent careful researches of Dr. Engleman is adopted. It is gratifying to note this cheerful acquiescence of a nurseryman in botanical decisions, because the lack of this virtue in the trade generally, and especially in the English trade has led us into endless trouble with the names of our plants, and often leads to a purchaser buying things ■over again under various names.

It ought to be generally known that the rule for plants' names is that the first person who .shows wherein a plant is new, and describes and names it in any reputable scientific publication, shall have the privilege of naming it. This name stands against all that may come after it. Subsequent names are synonyms. Now, very often the wrong name will prevail for some reason, and though the error is known, people dread to change for fear of confusion. But it is generally found that the time comes when some one or another digs up the original name, and insists on the law of priority, and more trouble comes from going back then, than if the courageous step had been taken when the error was first discovered. Thus it has been with Abies and Picea. We have tried to tolerate the error for years, but have to come back to the track at last. Mr. Douglas while divine the correct nomenclature also gives the synonyms, so that no confusion can arise till people become accustomed to the change. We give below his account of them which will be of interest to those studying Rocky Mountain forestry.