Any person sending in ONE new subscriber to the WEEKLY WITNESS at $1.10, or FIVE new subscribers to the NORTHERN MESSENGER at 30c. each, will receive an extra copy of the NORTHERN MESSENGER. TO SUNDAY-SCHOOLS. Any Sunday-school that does not now take the NORTHERN MESSENGER can procure a sufficient number of copies to supply one copy to each family attending the school FREE to the end of the year, 1878. WITNESS FREE LECTURES ON AGRICULTURE. The publishers of the WITNESS have conceived the plan of establishing a Winter Course of Lectures on Agriculture. For this purpose they have secured the services of Mr. W. F. Clarke, of Lindenbank, Guelph, formerly editor of the _Canada Farmer_ and of the _Ontario Farmer_, who will lecture in such parts of the country as may offer him the best openings. The first lecture of the course, entitled "The Nobility of Agriculture," was delivered in the Ontario School of Agriculture, Guelph, Ont. This lecture, and ones which will follow, we propose issuing in the form of an eight paged pamphlet. Those who wish to procure this instructive course of lectures will do well to send a one cent stamp for return postage, and we will send them the first lecture of the course. JOHN DOUGALL & SON, _Montreal_. _An Open Letter_ _To those Working for our Prizes._ The WITNESS publications are favorites with the best people in the community, and on this account are the most easily canvassed for. In preparing our prize list we have tried to introduce articles to suit both young and old, male and female. The premiums are all of good manufacture, no common trash or worthless articles having a place on our list. If you can act as canvasser for us do so, but if not please oblige us by handing this to some honest, intelligent person, of your acquaintance, whom you think will be willing to act in your stead. _How to Send Money._ Send money by Post Office Money Order or by Registered Letter. Money may be sent by registered letter at our risk. Canada Postage Stamps taken in small quantities, if in good order; BUT MONEY is PREFERRED, as we have to sell the stamps at a loss. Remit as often as possible, as the sooner you remit the sooner will your subscribers receive their papers, and thus they, by receiving their papers promptly, will become an assistance to you. We desire your aid, and feel confident that there is something in the preceding list that each and every reader can obtain with a few hours determined work. Yours, respectfully, JOHN DOUGALL & SON, _MONTREAL, QUEBEC_. SPECIAL OFFER. WE ARE NOW OFFERING, AS A PREMIUM, THE STANDARD WORCESTER QUARTO DICTIONARY, ILLUSTRATED AND UNABRIDGED, _WHICH RETAILS AT $10.00_. TO ANY PERSON Sending us ten =NEW= subscribers to our "_New Dominion Monthly_," An Illustrated Magazine of 128 pages, at $2.00 per Annum,