IN placing this volume in the hands of the reader, the Author feels it a duty he owes to the sporting and scientific world, to tender an apology for the disappointment occasioned by the non-appearance of" Gunnery in 1868," which was promised by his late father, W. Greener, C.E., whose death took place before the intended work was completed. The numerous inquiries made by subscribers to that work, and others wishing to possess it, cause the Author to feel it incumbent on him, as his father's successor, to publish this treatise on Modem Breech-loaders. The important and numerous improvements...