Observationes Medicae (Tulp) Observationes Medicae (Tulp) Observationes Medicae is a 1641 book by Nicolaes Tulp. Tulp is primarily famous today for his central role in the 1632 by Rembrandt of the Amsterdam Guild of Surgeons, which commemorates his appointment as praelector in 1628. "Observationes Medicae" is also the title commonly used by early Dutch doctors in the 16th and 17th centuries who wrote up their cases from private practise in Latin to share with contemporary colleagues. Though already well known at the time his book was written, Professor Tulp enjoyed international fame after publishing this book, and in 1652 a second edition was
The Doctor (Doctor Who) credits Tennant as "Doctor Who". The credit reverted to "The Doctor" for 2005's Christmas special "The Christmas Invasion" and all subsequent stories at Tennant's request. Matt Smith, Peter Capaldi and Jodie Whittaker have continued to be credited as "The Doctor". John Hurt plays a mysterious past incarnation of the Doctor in the 50th anniversary special "The Day of the Doctor", with minor roles in "The Name of the Doctor" and mini-episode "The Night of the Doctor", created as a "mayfly Doctor" by Steven Moffat. In the television episodes, he is credited as "The Doctor", but he is introduced as "The