LIST OF ILLUSTRATIONS 



PLATES 



The mineralogy and petrology op intrusive Triassic diabase at Goose 

 Creek, Loudoun County, Virginia 



By Earl V. Shannon 



Facing page 



1. Diabase pegmatite in diabase 86 



2. Aplite, diabase, and diabase pegmatite 86 



3. Diabase and diabase pegmatite cut by hornblendizing seam 86 



4. Photomicrographs of diabase and diabase pegmatite 86 



5. Photomicrographs of diabase pegmatite 86 



6. Albitic pegmatite in diabase 86 



7. Photomicrographs of albitic pegmatite 86 



8. Augite blades in diabase pegmatite 86 



9. Micropegmatite in aplite and albite pegmatite 86 



Senecella calanoides, a recently described fresh-water copepod 

 By Chancey Juday 



1. Female of Senecella calanoides 6 



2. Male and female of Senecella calanoides 6 



3. Male of Senecella calanoides 6 



A CONTRIBUTION TOWARD THE CLASSIFICATION OF THE WEEVIL LARVAE OF THE 

 SUBFAMILY CaLENDRINAE OCCURRING IN NoRTH AMERICA 



By Richard T. Cotton 



1. lyetails of Cactophagus validus (LeConte) 12 



2. Details of Rhodobaenus tredecimpunclatus (Illiger) 12 



3. "Details of Sitophilus granarius (Linnaeus) 12 



4. Details of Cosmopolites sordidus Germar 12 



5. Details of Metamasius sericeus (Latreille) 12 



6. Details of Calendra callosus (Olivier) 12 



7. "Details of Rhynchophorus cruentatus (Fabricius) 12 



8. Details of Scyphophorus acupunctatus (Gyllenhal) 12 



9. Details of the genus Yuccabor us LeConte 12 



10. Buccal characters of Calendrinae 12 



Some hitherto unpublished photographs and measurements of the 



BLUE whale 



By Gerrit S. Miller, jr. 



1. Blue whale: Dorsal aspect of skull 4 



2. Blue whale : Ventral aspect of skull 4 



3. Blue whale: Lateral aspect of skull 4 



XI 



