I HEREDr ftUBSTITUTC th« tollowing tor 
the t*t Conditlon or Llcenc* No 2999 
;í'' , by jo3o Joaquia Icquiordo, lí.D,. 
\ Tbl» Licance Autherix** tbo LiceriMA 
• i.- ' 
• to pcnorm «ipofimant» at ihe tollowing places 
^ 6 nty, vil. 
íi) The Laboratorios of tho BiologicaJ 
and Uedicol Scbools, New UusouaB, UUton P.oadU 
^uutingdon Road. Canbridge< aod 
(ii) The Laboratory of the tlarino 
Bicdogical Asaociation, Citadol HiXi, Plymouth. 
¿TíD I HZEIBY SJ3STITUTS tho followir^ for 
the 6th ConditiOD of the aaid Licence. 
7. dll experinonts perfonaed by tho said Licecsee 
UErtor tüio Liconco ot Tho Laboratorios of tho Biological 
and Medical Schoola, Non Líuseuns, lülton Koad, Hantingdon 
Road. Canbridge.shall bo carried out ur.der the supervisión 
of Jocech Barcroft, Ssquiro, K.A. , FJ^«S. , Frofessor of 
Physiology in the University oí Cambridge. 
$• ¿11 experinonts porforaed by tho said Licensoe 
undor thie Liconce ot The Loboratory of tho llarioo 
Biological Associotion, Citadol Hill, Plynouth.shali be 
carriod out undor tho supervisión oí Sdgar Johnson Alien, 
Bsquire, D.Sc., Director of the said Lsboratory. 
One of His Llajesty’s Principal 
Secretarles oí State. 
WHIT3HALL, 
3rd Sopt embar, 1929. 
Wr I 6 ni-C 43 l 
Fig. 46. Una de las licencias que se requieren en Inglaterra para poder efectuar vivisecciones. 
