Oh, right, I'd forgotten about that. (I don't have that many of the branded old cookbooks, so mine are more inclined to be generic stuff. ) I think the main issue I've had with Knox vs. Jello is that the packets are for making different amounts between the two companies so you have to be really careful about figuring out your ratios to get the same results. (I was experimenting with unusual jello flavors like using various teas as the liquid, mostly I've reverted to doing things like just making the peach jello with ginger peach tea as the hot liquid.)

But yeah, Lemon could work well for some of them.