Hahnemann has suggested that to conduct a proving is the very best way to really understand Materia Medica. I have supervised several provings. Cadmium Metallicum is a re-proving of an originally conducted small proving by Stephenson and the Materia Medica is available at www.provings.info and Homœopathic Links for the benefit of researchers. Full transcript of the proving by me published in Links, is also available via the link below.

Additionally I have overseen a group trituration of Lac humanum to the C4 potency. An annotated transcript of the provers’ diaries has been incorporated as a chapter in the 2nd edition of my book The Lacs; and a full transcript of the proving is available at www.provings.info and also below and potencies from the trituration are available from Simillimum pharmacy in Wellington New Zealand. It’s named Lac Humanum Patricia Hatherly. With the benefit of the passage of time and the realisation that much of the diary material reflected solid Lac Humanum rubrics and themes, I edited an annotated version of the proving diary notes, for inclusion as a chapter in the 2nd edition of my book The Lacs.

The Lac Maternum proving is available at www.provings.info and below for the benefit of researchers and via the link below. A synopsis of the proving is in chapter 9 of my book The Homoeopathic Physician's Guide to Lactation; that, and the articles To Be or not To Be.... and Lac Maternum or Lac Humanum; how do we choose? All are available in the Published Articles section.

The proving of the milk of the kangaroo Lac Macropi Gigantei (2009) is one of the 22 Lacs presented in the 2nd edition of The Lacs a Materia Medica & Repertory and further information can be found in the Published Articles section of the website, as well as in My Video Library. It turned out to be a most interesting proving as the substance obtained from Australia's most internationally-recognised national symbol, appeared to "tell the story" of our nation's history. It is complemented by the proving of Uluru (Peisker; 2000) and a translation is available, at www.provings.info and via a link below for you to study. The similarities between the two provings are uncanny and are summarised in an edition of Milk Matters (April 2013).

It seemed to me that, if such significant symbols of the Australian landscape from the Animal and Mineral Kingdoms, could reflect the struggle of the nation's First Peoples to hold onto their culture as well as that of the white settlers to adapt to the harsh and unforgiving landscape, there would surely be something in the Plant Kingdom that would present a similar picture. So, I supervised (2013) a group trituration to C4 of Brachychiton Rupestris [Queensland Bottle Tree], a member of the Malvaceae family, and the materia medica profile proved to be consistent with that of lac-mac and uluru. Links are provided below.

Several articles have been published about these provings and can be accessed in the Published Articles section. An article in Homœopathic Links, and archived in the Published Articles section, sets out a DD for these three remedies.

Several of the Provings in The Lacs a Materia Medica & Repertory, are presented synoptically in Milk Matters. Since some were originally published in German, and the translations are below and also. The translations are available at www.provings.info and below.