Malachi 3:4 (King James Bible) as in the days of old and as in former years
Here the 1841 British edition replaced the second as with is. This obvious typo was replaced with the correct as in the subsequent LDS edition (1849). It definitely appears that the 1841 typesetter was quite tired as he set the text for this quotation from Malachi.
Summary: Maintain the original use of as at the end of 3 Nephi 24:4 (“and as in former years”).