COLOURING COLLODION PICTURES.--_We should like to see a specimen of Mr. Lane's skill, and should be very happy to insert his process._ PHOTOGRAPHY AT BATH.--_We understand that a pamphlet impugning the correctness of some processes given in_ "N. & Q." _has been published at Bath, but, as we know neither the author's name nor the publisher, have to request information on those points from some Bath photographer._ _Errata._--In p. 194., for "bytleing" read "bything;" for "byth" read "bytl.;" p. 195., the 24th line from the bottom the page, for "the prenzie Angelo", read "the prenze Angelo;" p. 207., for "parish of West Fetton" read "parish of West Felton." _A few complete sets of_ "NOTES AND QUERIES," Vols. i. _to_ vii., _price Three Guineas and a Half, may now be had; for which early application is desirable._ "NOTES AND QUERIES" _is published at noon on Friday, so that the Country Booksellers may receive Copies in that night's parcels, and deliver them to their Subscribers on the Saturday._ * * * * * {259} INDIGESTION, CONSTIPATION, NERVOUSNESS, &c.--BARRY, DU BARRY & CO.'S HEALTH-RESTORING FOOD for INVALIDS and INFANTS. THE REVALENTA ARABICA FOOD, the only natural, pleasant, and effectual remedy (without medicine, purging, inconvenience, or expense, as it saves fifty times its cost in other remedies) for nervous, stomachic, intestinal, liver and bilious complaints, however deeply rooted, dyspepsia (indigestion), habitual constipation, diarrhœa, acidity, heartburn, flatulency, oppression, distension, palpitation, eruption of the skin, rheumatism, gout, dropsy, sickness at the stomach during pregnancy, at sea, and under all other circumstances, debility in the aged as well as infants, fits, spasms, cramps, paralysis, &c. _A few out of 50,000 Cures_:-- Cure, No. 71, of dyspepsia; from the Right Hon. the Lord Stuart de Decies:--"I have derived considerable benefits from your Revalenta Arabica Food, and consider it due to yourselves and the public to authorise the publication of these lines.--STUART DE DECIES." Cure, No. 49,832:--"Fifty years' indescribable agony from dyspepsia, nervousness, asthma, cough, constipation, flatulency, spasms, sickness at the stomach and vomitings have been removed by Du Barry's excellent food.--MARIA JOLLY, Wortham Ling, near Diss, Norfolk." Cure, No. 180:--"Twenty-five years' nervousness, constipation, indigestion, and debility, from which I had suffered great misery, and which no medicine could remove or relieve, have been effectually cured by Du Barry's food in a very short time.--W. R. REEVES, Pool Anthony, Tiverton."