What Grammar Authorities Have Said
About the Importance of Using WHICH and THAT

by Lorraine Lica, PhD



Which Versus That
Why Using Which and That Correctly is Important for Scientists
The Distinction Between Which and That -- An explanation of the correct use of which and that using set theory and Venn diagrams -- especially for scientists
How I Came to be Qualified to Write on the Distinction between Which and That





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If writers would agree to regard that as the defining relative pronoun, and which as the non-defining, there would be much gain both in lucidity and in ease.

Modern English Usage by H.W. Fowler.


The use of "that" to introduce a restrictive clause and "which" to introduce a nonrestrictive clause remains a device valuable for accurate statement....This distinction is often ignored by even careful writers, but it can be useful in sharpening precise statement in science.

Scientific Style and Format, Sixth Edition. Published by the Council of Biology Editors.

Back to Why Using Which and That Correctly is Important for Scientists.





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© 1998 by Lorraine Lica