One word more, and I have done. If I was allowed to give one special piece of advice to a young officer, whether of the army or navy, I would say--Respect scientific men; associate with them; learn from them; find them to be, as you will usually, the most pleasant and instructive of companions: but always respect them. Allow them chivalrously, you who have an acknowledged rank, their yet unacknowledged rank; and treat them as all the world will treat them, in a higher and truer state of civilisation. They do not yet wear the Queen's uniform; they are not yet accepted servants of the State; as they will be in some more perfectly organised and civilised land: but they are soldiers nevertheless, and good soldiers and chivalrous, fighting their nation's battle, often on even less pay than you,--and with still less chance of promotion and of fame, against most real and fatal enemies--against ignorance of the laws of this planet, and all the miseries which that ignorance begets. Honour them for their work; sympathise in it; give them a helping hand in it whenever you have an opportunity--and what opportunities you have, I have been trying to sketch for you to-night; and more, work at it yourselves whenever and wherever you can. Show them that the spirit which animates them--the hatred of ignorance and disorder, and of their bestial consequences--animates you likewise; show them that the habit of mind which they value in themselves--the habit of accurate observation and careful judgment--is your habit likewise; show them that you value science, not merely because it gives better weapons of destruction and of defence, but because it helps you to become clear-headed, large-minded, able to take a just and accurate view of any subject which comes before you, and to cast away every old prejudice and every hasty judgment in the face of truth and of duty: and it will be better for you and for them.