I was stupid. I failed to see the link to it just above, and, feeling a tad ashamed(happily, though, for obvious reasons outlined below), I clicked on it and dove into the book. While my Russian is far better than my German, and I'm functionally illiterate with respect to Russian, I was able to understand it well enough to kind of follow. And am gonna have fun reading this in the future, because even though there aren't any photos that I can use, I can still follow the development of the various jet engines outlined, including the Lorin type as well as the Argus pulsejets. I'm especially interested, now, in the further ducted fan development, especially using a DB604. Lots of whiffing possibilities.
One thing, though, I still can't find any other reference elsewhere concerning the BRAMO 325, a 14 cylinder radial used on the ducted fan Steiglitz. But then, such is the price of research, you have to keep picking at thread ends until something else gets pulled out.