On line you can find a multitude of older treatises on how to raise bees, chickens, cows and the like, dye cloth, cook food, and so on. While there is a lot of good information in these sources, it's advisable to check them against modern sources for several reasons.
First, older resources are...old. Out of date can be no longer recommended, as in canning procedures that are no longer considered safe.
Second, older resources have a lot of terms that we no longer use, which can cause confusion or result in you purchasing or using the wrong substance. When's the last time you bought any of the ingredients in this recipe: 'FOR LILAC COLOUR Take a little pinch of archil, and put some boiling hot water upon it, add to it a very little lump of pear-lash. Shades may be altered by pear-lash, common slat, or wine.' ?
Y'know, Safeway is all out of archil, last time I looked. Hardware store didn't have any either.
Did you note the spelling of 'colour'? That's not American English, that's English English - another way that you could go wrong if the source of your material is both old and not local.
You might also be missing out on recent discoveries such as the value of small-cell foundation in reducing hive predation by varroa mites.
When in doubt, check it out, with a modern resource.