how the convicts on board ship commonly spent time tattooing themselves with gunpowder. Out of a study of 10,180 convict records that were transported to then Van Diemen's Land (now Tasmania) between 1823 and 1853 about 37% of all men and about 15% of all women arrived with tattoos, making Australia at the time the most heavily tattooed English-speaking country. By the beginning of the twentieth century, there were tattoo studios in Australia but they do not appear to have been numerous. For example, the Sydney tattoo studio of Fred Harris was touted as being the only tattoo studio in Sydney between 1916 and 1943. Tattoo designs often reflected the culture of the day and in 1923 Harris's small parlour experienced an increase in the number of women getting tattoos. Another popular trend was for women to have their legs tattooed so the designs could be seen through their stockings. By 1937 Harris was one of Sydney's best-known tattoo artists and was inking around 2000 tattoos a year in his shop. Sailors provided most of the canvases for his work but among the more popular tattoos in 1938 were Australian flags and kangaroos for sailors of the visiting American Fleet. In modern day Australia a popular tattoo design is the Southern Cross motif, or variations of it. There are currently over 2000 official tattoo practitioners in Australia and over 100 registered parlours and clinics, with the number of unregistered parlours and clinics are estimated to be double that amount. The demand over the last decade for tattoos in Australia has risen over 440%, making it an in demand profession in the country. There are several large tattoo conventions held in Australia, some of which are considered the biggest in the southern hemisphere, with the best artists from around Oceania attending. Process Tattooing involves the placement of pigment into the skin's dermis, the layer of dermal tissue underlying the epidermis. After initial injection, pigment is dispersed throughout a homogenized damaged layer down through the epidermis and upper dermis, in both of which the presence of foreign material activates the immune system's phagocytes to engulf the pigment particles. As healing proceeds, the damaged epidermis flakes away (eliminating surface pigment) while deeper in the skin granulation tissue forms, which is later converted to connective tissue by collagen growth. This mends the upper dermis, where pigment remains trapped within successive generations of macrophages, ultimately