Both the 24 individual volumes and the six 4-disc box sets went out-of-print during the course of 2008.

The series began in 1861 and now comprises more than 400 individual volumes.

Yet some 95,000 individual volumes have been sold since 1966, when the first one appeared.

I'll still do the best I can to find some kind of closure for each individual volume.

The company began releasing the individual volumes on March 31, 2009.

The set was also made available as individual volumes.

The individual volumes of the second edition were reprinted many times.

Then, and only then, may you look for the individual volume.

Nine individual volumes have been released as of July 2007.

At each company, sales of individual volumes rarely exceed 10,000, and often are far less.