Is the following sentence correctly punctuated (specifically, is a comma needed between "tall" and "white"?
Beyond them was a rather tall white counter, and seated behind it sat the doctor's secretary.
Thanks so much!
Alex
Beyond them was a rather tall white counter, and seated behind it sat the doctor's secretary.
Whether the noun phrase in bold is punctuated correctly or not depends on the intended meaning. In "a rather tall, white counter", "counter" is modified by a coordination of modifiers giving the meaning a "counter that is both rather tall and white".
By contrast, without punctuation, "a rather tall white counter" has two layers of modification called stacking: "counter is modified by "white" to form the nominal "white counter", and this in turn is modified by "rather tall" to give the interpretation "counter that is rather tall by the usual size applicable to white ones".
Yes.
You use a comma between two adjectives that can be interchangeable, meaning you can switch the order and it would still make sense.
For example, I will use your sentence.
Beyond them was a rather tall, white counter
You can switch them, and it would still make sense.
Beyond them was a rather white, tall counter
I will make another example, this time it cannot be interchangeable, so you wouldn't use a comma.
I bought a wardrobe of some cheap winter clothes
If you change the order, it wouldn't make sense:
I bought a wardrobe of some winter cheap clothes
You can read more about it here on grammar book. It not only explains this issue, but also using commas in general.