E. C. G.--We believe you can obtain grammars and dictionaries in most of the Eastern tongues at Messrs. Truebner's, Ludgate-hill, E.C. We cannot say what progress you would make without a master, as we do not know your capabilities. MACAW.--We have great pleasure in giving the address of the correspondence class from which you have derived so much advantage, and which you sought through our advice. Miss MacArthur, 4, Buckingham-street, Hillhead, Glasgow. So well managed, as it appears to be from your account, we hope our notice may prove of much use to our readers. MISS MACKAY.--We thank you for the particulars which you send us of your essay club, called The Rookery, and willingly give your invitation to our readers to join it. There is no charge made for these answers to correspondents. We are glad to give help and promote all useful efforts, and believe we shall do so by giving your address as Hon. Secretary, Governor's House, H.M. Prison, Lincoln. LEONA WOODFIELD.--Candidates for hospital training are generally required to be from twenty-five to forty years of age. They may enter the Children's Hospital, Great Ormond-street, at twenty-one. UNION JACK.--The English language is a compound of three different dialects spoken for two or three centuries after the Norman Conquest. That of the East Midland was the speech of the metropolis, in which Chaucer, Gower, and Wyckliffe wrote, and was spoken in East Kent and Surrey. There were also the Northern and Southern dialects, which, blending with the East Midland, formed the basis of modern English. But these three dialects are likewise compounds of the Saxon, Celtic, Danish, and Norman tongues. To get rid of the smell of paint, sprinkle some hay with chloride of lime and leave it in the rooms; also a basin of water, to be changed night and morning. You will perceive traces on the surface of what it has absorbed. T. C. S.--Why do you not read our answers under this heading? You will find that there are several societies for training female missionaries and catechists. MARY COMMANDER.--Astronomers measure the distances between the earth and the stars by means of mathematical calculations. You should procure some work on astronomy. There is a nice little book published in our office called "The Heavens and the Earth," and another, rather larger, called "The Midnight Sky;" both are illustrated. MARY WILLIAMS.--If you refer to any volume of the G. O. P. and read our answers under the above heading, you will see all we can tell you about telegraph clerks. We must decline to full up space by continually repeating old answers. WHITE TULIP must do as we have directed "Mary Williams," and find all the addresses of societies where young women are trained for zenana and other missionary work. It is very wrong not to go to church on Sunday mornings merely because of "feeling shy." That is rubbish. Attend to your book and your prayers, and not to your neighbours. Nobody will notice you.