XVii 
Page 
The tunica vaginalis and testis of a Lamb affected with a con- 
genital parenchymatous hydrocele ........e:eee sees rere eeaee 213 
The occiput of an Ichneumon, with dislocation of the atlas and 
subsequent ankylosis of that bone to the occiput ............ 214 
The marsupium of a Short-headed Phalanger, Belideus breviceps, 
opened in order to show a scirrhous cancer growing from the 
mammary gland ......sceseeereceeeteeceeteecereeneenees 216 
Tleo-czecal intussusception in a Lemur .......-..eee cece eee eee 217 
Balenopterus unisetus .. 0... ccccccecceeeeeceennecneeneceeenes OE 
Echinorhynchus ruber... 00sec cece eee net ence eee e ee ee eens 258 
Calanus firmarchicus 0.0.0 cece crete cern eee eee neneeesceee 202 
Generative organs Of Fudrilus .......ccccce sense eee e een nc tenes 803 
Generative organs of Eudrilus, with bursa copulatrix laid open ..,. 805 
Varieties of Pertony® eXCQVAtUS... 2.6.1 cree neste renee asnencces 310 
A small Fish of the genus Fierasfer imbedded in a Pearl-Oyster...,. 319 
Trachea of Nothocrax urumutum, SG ces cccccccecccecessccsssesss OE 
Syrinx of Abdimia sphenorhyncha.... cc. cccevee ec eeneeeeenneeas 323 
Syrinx of Xenorhynchus senegalensts... 0.60.6 c cre ee reeves neeenes B24 
A vertical section through the body of the axis to show the lenticular- 
shaped piece of cartilage in Man .........seseeececeeeceeee 338 
A diagram of the axis vertebra to show the various nuclei in Man.. 339 
A section through the human sacrum, showing the epiphysial plates 
uniting with each other peripherally before fusing with their 
CONLTA tania meses Meee eee cit eis Grie iaiistess Biersl> oeanee 340 
Axis vertebra of a young Seal in section, showing the epiphysial 
plates of the true centrum of the axis .......... Soncesoueon: 341 
Map of the vicinity of Tarapaca, Chili.......-..... sess eeeeneeee 396 
Bill of Pheenicopterus ANdinus oo 2csreveevevesecrsccsecascesees 400 
Bill of Phoentcoptercs. JAMest .. 0%. cece ccawet essere csrsesssrecns 400 
Right columella of Ichthyosaurus ...0. cee ce eee cece neenenneens 407 
Lower portion of right columella of eee sg psobsoo nace 407 
Lower portion of left columella of Ichthyosaurus intermedius ...... 407 
Waeft columella of Hatierzn gincbata ea. 6010 20 vin duun aici) als 2m) siotooe 407 
Muscles at the outer side of the elbow of the right wing of 
Caprimuligus CUnOp@Us oe e oisc05 6 a 0in ajsinin e's 8s av enone omen ea 471 
Muscles at the outer side of the elbow of the ieft wing of Steatornis. 471 
Anconal aspect of the left humerus of Tachycineta thalassina ...... 502 
Palmar aspect of the left humerus of Tachycineta thalassina ...... 502 
Anconal aspect of the left humerus of Micropus melanoleucus ...... 502 
Palmar aspect of the left humerus of Micropus melanoleucus ...... 502 
Anconal aspect of the left humerus of Trochilus alexandri ........ 502 
Palmar aspect of the left humerus of Trochilus alevandri ......++4. 502 
