Yes Michael but since that thread I've found a lot more about the work done to minimise it, and perhaps more interesting how the effects of the emulsions surface and the increase in apparent graininess in prints has been known about for at least 85 years.

Ctein new about the effects.

Most films are now well hardened to minimise any problem and it seems to be a combination of choice of developer and temperature variations that cause it to be an issue with just a few films.

Rodinal is one developer where it may occur and there's plenty of people who've had issues with Neopan 400 which will reticulate fully and even start to frill away from the base in some instances.

Ian