Herb ratio in BF&C?

Hello MH and everyone,

I understand that the "Bone, Flesh & Cartilage" formula has the following herbs in it:

Gravel root
Oak bark
Marshmallow
Mullein
Lobelia
Wormwood
Scullcap
Black walnut bark
Comfrey

What is the herb ratio in this formula? I'm pretty sure it's not equal parts.

Can someone with experience help me out?