The 10c stamp is from 1970 Physicians issue honoring bacteriologist Alexandre Yersin.
Alexandre Emile Jean Yersin (September 22, 1863–March 1, 1943) was a Swiss and French physician and bacteriologist. Along with Shibasaburo Kitasato, he is remembered as the co-discoverer of the bacillus responsible for the bubonic plague or pest, which was later re-named in his honour (Yersinia pestis).
The 180c stamp is from 2003 Medicinal Plants issue showing Malva Sylvestris,which is a species of the Mallow genus Malva in the family of Malvaceae and is considered to be the type species for the genus.
Mucilage is present in many of the Malvaceae family,especially the fruit and were employed medicinally, as demulcents and emollients. The seeds were used internally in a decoction as a demulcent and diuretic and the leaves made into poultices as an emollient for external applications.