George Dorr

George Bucknam Dorr (December 29, 1853 – August 5, 1944) was an American preservationist. Known as the "father of Acadia National Park," he spent most of his adult life overseeing the park's formation and expansion.
Charles William Eliot called the first meeting of what would evolve into the Hancock County Trustees of Public Reservations in 1901, but it was Dorr's vision that ensured the lands would be protected and preserved for future generations.
Acadia National Park.
Dorr first visited Mount Desert Island as a fifteen-year-old in 1868, on a vacation with his parents. On that visit they decided to buy oceanfront property at Compass Harbor, just outside downtown Bar Harbor. They did not start on the construction of the 58-acre, 30-room Old Farm (also "Oldfarm"), designed by Maine architect Henry Richards, until 1878, however. The remains of this residence are still visible, the main house having been demolished in 1951. The remains are part of Acadia National Park today, having been accepted into it in 1942. Their summer neighbor was Harvard University president Charles William Elliot.
Dorr purchased a small spring at Sieur de Monts in 1909 and carved the words "SWEET WATERS OF ACADIA" into a nearby rock. Atop the spring, Maine architect Frederick Lincoln Savage designed an octagonal canopy structure in the Italian Renaissance Revival style.
In 1913 Dorr received word that the Maine Legislature was considering revoking the nonprofit status of the Trustees. He travelled up from Boston, Massachusetts, to Augusta, Maine, and spent several days fighting the measure. He was successful, but he also realized that the lands he had fought hard to own needed the greater protection of the federal government. He was soon on his way to Washington, D.C., meeting with the powers that be.
In 1916, President Woodrow Wilson created Sieur de Monts National Monument. Dorr chose to have Wilson sign off on the national monument status rather than wait for Congress to act on the national park. The National Park Service was established that August, however, and Acadia was designated a national park, under the name Lafayette National Park, in 1919. It was given its current name in 1929. Dorr served as its superintendent from its foundation until his death.
John D. Rockefeller Jr. began construction of a carriage-road system on private land in 1913. It was developed and expanded as public land with the help of Dorr. About of carriage roads are maintained and accessible within park boundaries. Granite coping stones along carriage road edges act as guard rails; they are nicknamed "Rockefeller's Teeth."
Dorr initially believe that his personal fortune could support purchasing land on behalf of the park forever, but it proved not possible. He had declined any salary except for one dollar a month as the first custodian of the national monument, but after the park became Acadia in 1929, he accepted a regular salary.
Despite income from his highly successful Mount Desert Nurseries, Dorr's inheritance was depleted in the decade preceding the inauguration of Franklin D. Roosevelt as President. Roosevelt's federally-funded social programs allowed the park to develop rapidly.
Personal life.
Dorr was born in Jamaica Plain, Massachusetts, on December 29, 1853, to Charles Hazen Dorr (1821–1893) and Mary Gray Ward (1820–1901), affluent parents whose textile fortunes he inherited.
He was an 1874 graduate of Harvard University. Dorr's philosophy connections led him to serve on the department's visiting committee for two decades. He also led fundraising for a new building, Emerson Hall, to house the department, as well as helping the university acquire properties between Harvard Yard and the Charles River. He also graduated from the University of Oxford.
Dorr, a lifelong bachelor, swam in Frenchman Bay almost daily. He suffered a heart attack in 1934 during one of these swims and was told he had six months to live; he lived for a further decade, however.
Chronic vision difficulties also plagued Dorr through his life, and he lost his sight in his final years, when he was living an impoverished life in the 1879-built Storm Beach Cottage at Old Farm. Concerned about the future existence of his Old Farm property, Dorr reportedly offered it to Franklin D. Roosevelt as a summer retreat, but the President declined. Maine's tough winters meant the mansion had fallen into disrepair by 1951. A new roof was needed, as well as other structural repairs, estimated to cost around $30,000. After the National Park Service performed part of the demolition, John D. Rockefeller Jr. donated $5,000 to tear the remnants down. Only Storm Beach Cottage remains standing.
Death.
Dorr died on August 5, 1944, aged 90. In his honor, the National Park Service and the executors of his estate renamed the mountain that overlooks Sieur de Monts Spring as Dorr Mountain. A memorial stone was placed in his family lot at Mount Auburn Cemetery, in his native Massachusetts, where he was cremated; his ashes were returned to Bar Harbor, where they were scattered.

Keratoacanthoma

Keratoacanthoma (KA) is a common low-grade (unlikely to metastasize or invade) rapidly-growing skin tumour that is believed to originate from the hair follicle (pilosebaceous unit) and can resemble squamous cell carcinoma.
The defining characteristic of a keratoacanthoma is that it is dome-shaped, symmetrical, surrounded by a smooth wall of inflamed skin, and capped with keratin scales and debris. It grows rapidly, reaching a large size within days or weeks, and if untreated for months will almost always starve itself of nourishment, necrose (die), slough, and heal with scarring. Keratoacanthoma is commonly found on sun-exposed skin, often face, forearms and hands. It is rarely found at a mucocutaneous junction or on mucous membranes.
Keratoacanthoma may be difficult to distinguish visually from a skin cancer. Under the microscope, keratoacanthoma very closely resembles squamous cell carcinoma. In order to differentiate between the two, almost the entire structure needs to be removed and examined. While some pathologists classify keratoacanthoma as a distinct entity and not a malignancy, about 6% of clinical and histological keratoacanthomas do progress to invasive and aggressive squamous cell cancers; some pathologists may label KA as "well-differentiated squamous cell carcinoma, keratoacanthoma variant", and prompt definitive surgery may be recommended.
Classification.
Frequently reported and reclassified over the last century, keratoacanthoma can be divided into various subtypes and despite being considered benign, their unpredictable behaviour has warranted the same attention as with squamous cell carcinoma. 
Keratoacanthomas may be divided into the following types:
Cause.
Keratoacanthomas usually occurs in older individuals. A number of causes have been suggested including ultraviolet light, chemical carcinogens, recent injury to the skin, immunosuppression and genetic predisposition. As with squamous cell cancer, sporadic cases have been found co-infected with the human papilloma virus (HPV). Although HPV has been suggested as a causal factor, it is unproven.
Many new treatments for melanoma are also known to increase the rate of keratoacanthoma, such as the BRAF inhibitor medications vemurafenib and dabrafenib.
Diagnosis.
Keratoacanthomas presents as a fleshy, elevated and nodular lesion with an irregular crater shape and a characteristic central hyperkeratotic core. Usually the people will notice a rapidly growing dome-shaped tumor on sun-exposed skin.
If the entire lesion is removed, the pathologist will probably be able to differentiate between keratoacanthoma and squamous cell carcinoma. Follow-up would be required to monitor for recurrence of disease.
Treatment.
Excision of the entire lesion, with adequate margin, will remove the lesion, allow full tissue diagnosis, and leave a planned surgical wound which can usually be repaired with a good cosmetic result. However, removing the entire lesion (especially on the face) may present difficult problems of plastic reconstruction. (On the nose and face, Mohs surgery may allow for good margin control with minimal tissue removal, but many insurance companies require the definitive diagnosis of a malignancy "before" they are prepared to pay the extra costs of Mohs surgery.) Especially in more cosmetically-sensitive areas, and where the clinical diagnosis is reasonably certain, alternatives to surgery may include no treatment (awaiting spontaneous resolution).
On the trunk, arms, and legs, electrodesiccation and curettage often suffice to control keratoacanthomas until they regress. Other modalities of treatment include cryosurgery and radiotherapy; intralesional injection of methotrexate or 5-fluorouracil have also been used.
Recurrence after electrodesiccation and curettage can occur; it can usually be identified and treated promptly with either further curettage or surgical excision.
History.
In 1889, Sir Jonathan Hutchinson described a crateriform ulcer on the face”. In 1936, the same condition was renamed "molluscum sebaceum" by MacCormac and Scarf. Later, the term “keratoacanthoma” was coined by Walter Freudenthal. and the term became established by Arthur Rook and the pathologist Ian Whimster in 1950. 