I came across a NY Times editorial by Dr. Paul Offit and that led me to another piece about a book he wrote. Offit is an expert of world renown and a professor at University of Pennsylvania medical school. He co-invented a rotavirus vaccine. As always, Gardenweb readers' views will vary, but I think Offit's thoughts are enlightening. NY Times editorial concerning supplements (co-written with his hospital's pharmacy director): http://www.nytimes.com/2013/12/15/opinion/sunday/skip-the-supplements.html?src=me&ref=general&_r=0 US News article about Offit's views on "alternative medicine" http://health.usnews.com/health-news/health-wellness/articles/2013/07/22/paul-offit-takes-on-alternative-medicine This post was edited by snidely on Sun, Dec 15, 13 at 13:10

Rose de mai is one of the many names of Rosa centifolia, as I understand. This used to be extensively grown in Provence for French perfume, but now is now only cultivated commercially in select spots, such as on a farm owned by Chanel perfumes, IIRC. Today commercial rose attar is derived from Rosa damascena and imported from Bulgaria, Turkey, and other places. Other names for Rosa centifolia include Rose d'Hollande, Rose des Peintres, Cabbage rose, Rose de Provence, and Hundred petaled rose (of course common names for plants are not fixed but float around). Cultivars of Rosa centifolia were developed in 17th c. Holland, where they featured in Dutch flower pieces. Centifolias sometimes have rather large flowers but there are also a few "miniatures" around that were grown in 19th c. greenhouses for the florist trade.

The bark of several species of willow does contain a chemical that acts a bit like asprin. Ref: WebMD Willow bark is the bark from several varieties of the willow tree, including white willow or European willow, black willow or pussy willow, crack willow, purple willow, and others. The bark is used to make medicine. Willow bark acts a lot like aspirin, so it is used for pain, including headache, muscle pain, menstrual cramps, rheumatoid arthritis (RA), osteoarthritis, gout, and a disease of the spine called ankylosing spondylitis. Willow bark’s pain relieving potential has been recognized throughout history. Willow bark was commonly used during the time of Hippocrates, when people were advised to chew on the bark to relieve pain and fever. Willow bark is also used for fever, the common cold, flu, and weight loss. Salicin, the active ingredient in willow bark, seems to have contributed to the death of the composer, Ludwig von Beethoven. Apparently, Beethoven ingested large amounts of salicin before he died. His autopsy report is the first recorded case of a particular type of kidney damage that can be caused by salicin. How does it work?Willow bark contains a chemical called salicin that is similar to aspirin.

An Air-To-Water heat pump would be rather expensive and you would not be using it to its full potential. The higher the water temperature an Air-To-Water HP would have to produce, the lower its efficiency. That could be dealt with by adding lower temperature panel radiators but not likely worth the trouble in your case. I think you would be better off and better served by looking more into the mini-split options. Just for clarification, I would not usually recommend in-floor radiant cooling for residential applications although they can work. In-floor radiant would be more appropriate in a commercial/institutional setting where humidity and Dew Point is better monitored and controlled. Floors would be zoned out for cooling in residential with chilled water fed fan coil units for both heating and cooling. They are fed by insulated piping that is a must to prevent sweating and fan coil units that collect and deal with condensate in air-conditioning mode much like mini-splits or any other fan coil units. You may have already seen them and had no idea they were hydronic, water fed as they would look like conventional mini-split heads or central fan coils. IMPO SR