And although it be a most effectual vegetable Diaphoretick yet it may not be compared to those subtile spirits of minerals, of which in the second part. Also animal diaphoreticks have their commendations, as the flesh of vipers, the fixed salt of spiders and toads, in their peculiar operations, where each alone without the mixture of any other thing puts forth and sheweth its operations; neither are animal and vegetable diaphoreticks to be compared to the mineral, as _Bezoarticum minerale_, _Antimomum diaphoreticum_, and _Aurum diaphoreticum_. _A Diuretical Extract._ Take the seeds of Saxifrage, Carraway, Fennel, Parsly, Netles, of each 3. ounces, the root of liquorish, the greater burr, of each an ounce, the powder of woodlice half an ounce. Let these being mixed and powdered be extracted with spirit of Juniper according to art: then mix these following things with the extracted matter: Take the salt of Ambar, Soot, Netles, of each half a dram, purified Nitre a dram: Let these be powdered, and mixed with the extract and this mixture be kept for use. The dose is from a scruple to a dram, in the water of parsly fennel, _&c._ This extract forceth urin, opens the ureters, purgeth the reines, and bladder from all viscous flegme (the mother of all tartareous coagulation) _viz._ if it be used timely: In this case is commended also the solution of flints, and crystals, made with spirit of salt. A greater commendation have salts of nephritick hearbs made by expression, and crystallisation, without calcination, the preparation whereof shall not here, but elsewhere be taught. _A somniferous Extract._