1. The logical semi-colon
Review

2. Remember . . .
The logical semi-colon is used in sentences where there are many commas. In this instance, it may help you to think of the semi-colon as a “super comma”.
When you use it, you still must follow all of the other rules of punctuation . . .

3. Example:
Behind the kitchen wall, the mouse ate the wheel of cheese; but the smart, crafty chef was waiting.
Notice we have a compound sentence.
The first independent clause has an introductory prepositional phrase which has a comma following it.
The second independent clause has two parallel adjectives separated by a comma.
The semicolon here is functioning as a comma because the independent clauses themselves has commas in them. We must use a coordinating conjunction to separate them, too!

4. A comma used to separate two adjectives
Another example
The forest filled with thick, dense underbrush seemed impassible; and the hungry, tired pioneer family slumped to the ground in despair.
A comma used to separate two adjectives

5. Semi-colon with items in the series
Same reason!
Too many commas!

6. Assignment
1. Write 10 original sentences- 7 which illustrate the first rule and 3 which illustrate the second.
For the first 7 sentences:
Underline the each independent clause.
Circle the commas within the independent clauses
Put a square around the logical semi-colon AND the coordinating conjunction.
For the second 3 sentences:
Underline each item in the series.
For each of those items, circle the comma within each
Put a square around the logical semi-colons.