Different versions of Simplfied Manual?

On the website http://heartkindling.wordpress.com/2014/02/11/a-curious-find-gregg-shorthand-manual/, there is a picture of pages 22 and 23 of the Simplified Manual, Second Edition.

Page 22 has 14 practice sentences, but my copy has 13.

Page 23, paragraph 26 is 'Phrases', in my copy paragraph 26 is 'Reading Practice'.

What's going on here?

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