CONTENTS 
Page 
HOMManvas babementedMspAn Ms) maser eee esa serene isneeen since sem en eceeee 11 
Description and discussion of the Peruvian crania (W J M.)....-.......------ 14 
Mhexcollectioneraeees ase tees oae ees eae oases eae seco noe ee eelcinee 14 
Tera anne SinECr Tals cae cea cadeds Seno EH SUES I Seonan SeeLeoSeeE BEEEEneee 15 
(Dis brilomblonigeerery eee arose eet aoe bieet a eee oniea te cine oe celenlesee 15 
Classitic ati Onmrme rer errr : aoc a: = ere seen Shee eae corneas 17 
Oxigingandideyvelopmentes==--2 s--ees-ceeesenecs cfc. cnesccedacseess~ 19 
Mheveraninpinnd ocallesetee sane ee see ace eee es sae acs eee eu eee eae cess 25 
Wommonfeatunes sere aes cane os eee Saas e ec eyseeeesc cee cece Skee 25 
@raniamel eer aereetasccemaaa= o1osioas one se sanscce cece ewe eee seemese> 26 
(Cnenylibhin) 323 paeclodes Bucs ote Ee OS aes Bae a SSE Ae Ree ee ene eee 28 
CQuaiiiniimn 3) sSasbséoos ond So CeCe Ce EOE SSR eee ee er ee 29 
Cran inden ee ete tase eae ae nee ey ee oe ae eS A 29 
(Oni a D326 bas kedeco aS oe dS Se CBOs GeMAe EES B eee Ae a aE eee eee eRe 30 
(CHANGED ect are oes aS oa Eee eee se 31 
GCramimmyt) = asetese teeter ee eee aris ai ae Secs, Seite ees detceeemeres 32 
Grama Symes ee cts mists eats ies ole ces eine cities see ce eeiaeecee seems Boe 
@raniomu Oe eee eee ee ae ane ace Meek cease cerieeui nce santas sence 35 
Crani mm Opes eee ere ees cies heer eioet Ges ocionnee ceo seeeone 35 
Cram Ble mere aee rie see ee sec ce ee ee se eee cee sniccecenee 36 
@raminml HD  sereiten Sesieieleisciaciais es sleee s/aid Rie 2e eRe ei he Se SoS RISES 37 
@raniumbpl Syren ae eee cis oc ere ae aaa se Sea es aoe tewaeseetene 38 
@rammumipl dere see ee ttaeie a aisiss ref rceies = 2) ea, 2 Be wiesicre Acie acta wie ie 40 
Cranium 5 fesserer eer ee ae an ae acer ee sme pe eeenemer sarees coca 43 
Craniinel 6 peer see oe ae ee eee i secs ea ae eee eee eee 45 
@raniumbliiiesee sees aie ase s ate tare tee Bee es Sacre ae ee oe eee eer 47 
Crantumbl Seer saree serene sae ee eee se ents nsec aoe ae ene tone ae soe 49 
Craniuiniel 9 per eee pee sete arse a aye eee ee ee ee ee eee ee ae 52 
Meth odtotyoperatin gees meee oss aise snes Secs ieee ces nent eae a aeensese 55 
TNS CRUM ON LS Mee eee eters ae eers ee crease sia cetacean oe sioe Se cete eeame ee 58 
Procedure) of the operators === <2. --52 2525 ne see 2 see cte shen scene Sone san 61 
AAG) TAO MEMO? O ROLE = 05 coe sgosabaesases oriae sesUesed devesash-eatoses 63 
Generaltindications of motive) - ses e= ase seoae sso eee oan e = sree 63 
Speciulsinadl catronsioremovvera- seats sec sae ee cae ee eee ee tecieae 67 
Classification of Peruvian trephining...-..-.---.-.---..-.-.=.--...----- 
Significance of Peruvian trephining ---..--.--------------------.-------- 72 
