Since the American Revolution, there have been many small steps toward various parts of Canada being annexed to America. Perhaps the most significant of those came in the middle to late 1860's. 

As a result of Britain's support of the Confederacy, which many believed extended the war by a full two years, America was pushing Britain for reparations. One of the possible payment was in the form of Nova Scotia and perhaps New Brunswick. This pressure coincided with strong sentiment in Nova Scotia especially. The people were decidedly against becoming a part of Canada proper and felt their connection to England hurt their trade position, largely fish exports to the United States. Politicians ran on the platform and public sentiment was for joining the United States in many quarters of the population. 

In the end, Britain was fearful that it would cascade and that much of the East of Canada would be lost, costing taxes, important land resources, and potentially cutting off the remainder of Canada from the Eastern coastline and easy access to British trade. 

Very scarce. None in the auction records and none located in the trade. 

Anonymous. Annexation to the United States: Is it Desirable? and is it Possible? by "One of the People." Halifax, Nova Scotia. Printed by James Bowes & Sons, Hollis Street. 1868. 64pp.

A good + copy, bound in wraps with rear wrap a bit skewed; generally solid. Light ex library marks as shown. Pages are handled, toned throughout, but still generally bright.