This article is the second in a series of interim reports on attempts to produce cave-like CaCO3 structures, i.e. simulated stalactites and stalagmites, in the laboratory. The effects of such things as differences of temperature, and acetic acid in the water, were investigated. It was found that it is indeed possible for limestone to be dissolved, and the CaCO3 later precipitated, very quickly. It is evident that this matter of dripstone must be investigated in conjunction with the process of formation of caves, and also the formation of limestone. Some suggestions are made about these matters; clearly more research is needed.