On the education and training of the feeble in mind : Down, John Langdon Haydon, 1828-1896 : Free Download, Borrow, and Streaming : Internet Archive
![On Some of the Mental Affections of Childhood and Youth: Being the Lettsomian lectures delivered before the Medical society of London in 1887, together with other papers: Down, J. Langdon Down: 9783337369965: On Some of the Mental Affections of Childhood and Youth: Being the Lettsomian lectures delivered before the Medical society of London in 1887, together with other papers: Down, J. Langdon Down: 9783337369965:](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/61r6d9ofUCL._AC_UF1000,1000_QL80_.jpg)
On Some of the Mental Affections of Childhood and Youth: Being the Lettsomian lectures delivered before the Medical society of London in 1887, together with other papers: Down, J. Langdon Down: 9783337369965:
![Surrey History Centre on Twitter: "Patient photographs from Royal Earlswood Asylum #Redhill 1860s (4645/16/11) chosen by Professor David Wright @mcgillu. John Langdon Down, Earlswood superintendent, mastered the technique of glass plate photography Surrey History Centre on Twitter: "Patient photographs from Royal Earlswood Asylum #Redhill 1860s (4645/16/11) chosen by Professor David Wright @mcgillu. John Langdon Down, Earlswood superintendent, mastered the technique of glass plate photography](https://pbs.twimg.com/media/DtzeDfEXcAI1BG5.jpg)
Surrey History Centre on Twitter: "Patient photographs from Royal Earlswood Asylum #Redhill 1860s (4645/16/11) chosen by Professor David Wright @mcgillu. John Langdon Down, Earlswood superintendent, mastered the technique of glass plate photography
![The Skin and its Troubles: Langdon Down, J. Langdon Down, Power, Henry Power: 9783744745918: Amazon.com: Books The Skin and its Troubles: Langdon Down, J. Langdon Down, Power, Henry Power: 9783744745918: Amazon.com: Books](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/515PW6mUACL._AC_UF1000,1000_QL80_.jpg)