The lines go like this:-

These are the only ones of which the news has come to Ha’vard,

And there may be many others but they haven’t been discovered.

Read the rest of the song but make sure you credit Tom Lehrer.

Wendy

Part of a national public libraries collaborative: Enquire. Look us up at http://www.peoplesnetwork.gov.uk

Flask – task, mask, basque, bask

Element – sentiment,

Periodic Table – fable, stable, label

You can go to our dictionary site:

http://www.allwords.com

Go to search box, click the “Words Ending With” and type in the end of the word you’re trying to rhyme, hit find it.

to match element i typed in “ment” and searched “words ending with”, here are the results

http://www.allwords.com/query.php?SearchType=1&Keyword=ment&Language=ENG

that should help you find rhymes.