The History of the Town of Greenock is also available to read online at the excellent Inverclyde Council website (along with many other online resources).
The front picture shows part of a painting of Greenock by John Fleming (1792-1845). He often painted scenes of Greenock and many of his works can be seen at Your Paintings on the BBC website. The views of Greenock are very interesting in their details of ship building, ships in dock and steamers on the River Clyde.
I would highly recommend this book for its details about various aspects of Greenock's history - from the landowners, church history, shipbuilding and other industries to lists of lawyers and doctors at the time Weir was writing. At the very end is a list of subscribers to the book. Many of the names will be familiar to anyone with an interest in the history of Greenock.