I have access to the 1987 edition published by Family Line Publications. It should be the same book.
On page 10, Clements writes, " A list of the known battalion follows:
1 Somerset Upper Battalion
2 Cecil Elk, Elk River Battalion
3 Dorchester Upper Battalion
4 Talbot [nothing listed on page]
5 Queen Anne’s Upper Battalion
6 St. Mary’s Upper Battalion
7 Ann Arundel Severn Battalion
8 Harford Lower Battalion
9 Baltimore (not used, see unnumbered bns.)
10 Worcester 1st Battalion
11 Prince George’s Lower Battalion
12 Charles Lower Battalion
13 Kent Lower Battalion
14 Caroline East Battalion
15 Calvert [nothing listed on page]
16 Montgomery Upper Bn. (former Frederick Lower District)
17 Somerset Lower Battalion
18 Cecil Bohemia Battalion
19 Dorchester Lower Battalion
20 Queen Anne’s Lower Battalion
21 St. Mary’s Lower Battalion
22 Ann Arundel Elk Ridge Battalion
23 Harford Upper, Hall’s Battalion
24 Worcester 2nd Battalion
25 Prince George’s Upper Battalion
26 Charles Upper Battalion
27 Kent Upper Battalion