One of my English teachers taught that when using commas to delimit a list, there should be a comma before the conjunction. E.g.:
red, white**, and** blue
But in several publications, they would use:
red, white and blue.
Which is right?
Let the Truth of Love be lighted/ Let the Love of Truth shine clear. Sensibility/ Armed with sense and liberty
With the Heart and Mind united in a single/ Perfect/ Sphere. - Rush
I think there is general agreement that neither is “wrong”.
I use a comma before the conjunction when I want to separate the penultimate (for those on that thread) item from the last item.
e.g.
Bring me a pad, a pen, and a watermelon.
but…
Bring me a watermelon, a pad and a pen.
(…depending, I suppose, on what I want each item for.)
This is known as the “serial comma” dispute. Both styles are
common. The second style was recommended by Fowler, and is Oxford
University Press house style (hence it is also called “the Oxford
comma”; it is also known as “the Harvard comma”); it is more common
in the U.S. than elsewhere. Although either style may cause
ambiguity (in “We considered Miss Roberts for the roles of Marjorie,
David’s mother, and Louise”, are there two roles or three?), the
style that omits the comma is more likely to do so: “Tom, Peter, and
I went swimming.” (Without the comma, one might think that the
sentence was addressed to Tom.) “I ordered sandwiches today. I
ordered turkey, salami, peanut butter and jelly, and roast beef.”
Without that last comma, one would have a MIGHTY weird sandwich!
– Gabe Wiener. James Pierce reports that an author whose custom it
was to omit the comma dedicated a novel: “To my parents, Ayn Rand
and God.”
The battle rages on. My Associated Press Stylebook says omit the comma before the conjunction, my Chicago Manual of Style says to include it. Our proofreader in the office is comfortable leaving it out, but my biggest client demands that it be left in.
The rules have become awash. Lately, either is accepted as correct; however, there is a technical difference in meaning. Originally, a comma should have been used when listing “x, y, and z”.
This was to make clear that these are three indivudal and distinct elements. However, one might mean “w, x and y, and z”…where “x and y” intentionally belong together as one element.
For example: screws, block and tackles, and levers are all simple machines. The last comma helps seperate disticnt elements.
I’d rather have a bottle in front of me than a frontal lobotomy - Hawkeye 4077th
To clarify: the usage (or not) of a serial comma is purely a matter of house style. Newspapers generally avoid it; book publishers generally use it. The only rule is to apply whichever you choose consistently throughout the manuscript.
“East is east and west is west and if you take cranberries and stew them like applesauce they taste much more like prunes than rhubarb does.” – Marx
I think the more modern form is to omit the comma before whatever explicit connective (‘or’ or ‘and’), but I think it should be in there whenever it would reduce ambiguity or the items in the series are long. Of course, if the items are whole verbal clauses, you might want to use semi-colons.
Ray (not there, but getting warm. . .before a fireplace, log, andiron)
We talked about this before. But I guess that search function needs a Y2k update. Someone called it a ‘Boston Comma’ then. Anyway, as the def. says, comma’s seperate items. The word ‘and’ is not an item, sorry. So, no extra comma.
com•ma "ka-me\ noun [LL, fr. L, part of a sentence, fr. Gk komma segment, clause, fr. koptein to cut — more at capon] (1554)
1 : a punctuation mark , used esp. as a mark of separation within the sentence
2 : pause, interval
3 : any of several nymphalid butterflies (genus Polygonia) with a silvery comma-shaped mark on the underside of the hind wings
I am a technical writer. I deal with this stuff everyday. It’s funny to me that engineers all “know” the right way. It is clear that no one, including other engineers, can understand their text. That is why I stay employed.
Handy states that his rule follows the dictionary definition. May I point out that the comma before the “and” does not separate the penultimate item from the “and.” It separates the penultimate item from the ultimate (I know that’s not proper use of ultimate, but it sounds nice). The “and” joins the two and, in some sentences, joins them a little too tightly necessitating a counteracting comma.
All recent shifts in punctuation, that I can think of, shorten text. For instance, there is a movement to eliminate the double-space after a period. As long as it does not interfere with clear prose I don’t fight it. Personally, I like the double-space. It makes it easier to skim because the sentence breaks jump out at you. HTML eliminates all double spaces by default.
As far as the comma list goes, I think it is clear from the previous posts that you need to read the sentence carefully and choose the punctuation that makes it most clear. If it doesn’t matter, then it doesn’t matter except that consistency is desirable. Personally, I put the comma in as default because that was the way I was taught 20+ years ago.
If men had wings,
and bore black feathers,
few of them would be clever enough to be crows.