Patrict I believe you are referring to another book since the Holy Science by Sri Yukteswar has a very important section on diet and why a vegetarian diet is best suited for human beings. And it is quite lengthy and descriptive, from an anatomical view, sensory view and comparison of meat eating habits of various creatures compared to vegetarian eating creatures. You are welcome to have the opinion you wish friend. But I sincerely think you have been brainwashed by our culture to believe things that are based on a social perspective of the dark ages. Its not one person against another. It is an honest statement from my view. We have had such conversations before and you wanted me to have out with it. However when I do express the honesty you seek, you act as though I have attacked you. I see it as a defense posture you take. I am not forcing my opinion on you. I am stating facts that are accepted by the Masters and not by western society and culture.
I have only read the original 1894 edition, it has 4 chapters 70 pages; The gospel, the Goal, The Procedure, The Revelation. But I see that there is a reprint that someone did for self-realization fellowship in the 1970's where some American Authors added some pages and re-copywrited the title and started charging money for the book. (It was previously free to all) maybe this new version is what you are speaking of. If you have the copy that is all in English and says self realization fellowship on the bottom, then that may be where you are seeing this other information. The original version is in Hindi with the translation on the opposing page for the dual version.
You are of course free to hold views that others are 'brainwashed' but you may find it helpful to not confuse what you 'think' someone holds as belief with what they actually hold. When you say you are stating facts, it is important to remember that facts and logic are not always compatible with other forms of knowledge. Intuition and understanding are often deeper than 'fact'. I would suggest learning some meditative techniques that will allow you to free yourself from this paradigm. What are some of the techniques that you think could benefit you in working on that aspect?
Guru Nanak the first guru of Sikhism had a good quote about the meat issue: "Only fools argue whether to eat meat or not. They don't understand truth nor do they meditate on it. Who can define what is meat and what is plant? Who knows where the sin lies, being a vegetarian or a non- vegetarian?"
My point of interest is not in weather or not meat eating is good or bad or some other human level judgement, I am interested in the spirituality associated with ancient people and their hunting/fishing rituals and where these are in the constellation of spiritual practices.