1 9. G. E. MARION: Mandibular and pharyngeal muscles of Acan- 

 thias and Raja {American Naturalist, xxxix, pp. 891-920, 

 I 95)- I 5 Text-figures. 



20. F. W. THYNG: The squamosal bone in tetrapodous Vertebrata, 

 (Proceedings of the Boston Society of Natural History, xxxii, 

 pp. 387-425). 3 Plates, i Table, and 20 Text-figures. 



21. F. S. COLLINS: The Green Algae of North America. 1 8 Plates. 



22. F. D. LAMBERT: Two New Species of Characium (Rlwdora, 

 Vol. ii, pp. 65-74, Plate 79, April, 1909). i Plate. 



23. J. S. KINGSLEY: A Synopsis of the Fixed Hydroids of New 

 England. 7 Plates. 



24. A. C. LANE : Wet and Dry Differentiation of Igneous Rocks. 



25. J. S. KINGSLEY : Meristic Homologies in Vertebrates (Ameri- 

 can Naturalist, Vol. 41, pp. 103-107, 1907). 



26. F. D. LAMBERT : An Unattached Zoosporic Form of Coleo- 

 chaete. i Plate. 



27. FRANK S. COLLINS: The Green Algae of North America (Sup- 

 plementary Paper). 2 Plates. 



28. F.- D. LAMBERT: Didymosporangium repens, New Genus and 

 Species of Chsetophoraceae. i Plate. 



29. F. N. BLANCHARD: Two New Species of Stigonema (Rhodora, 

 Vol. 15, pp. 192-200, Plate 105, November, 1913). i Plate. 



30. H. V. NEAL: The Morphology of the Eye-muscle Nerves (Jour- 

 nal of Morphology, Vol. 25, pp. 1-188, 9 Plates and 4 Text-fig- 

 ures, March. 1914). 9 Plates. 



31. ALFRED C. LANE: Mine Water Composition an Index to the 

 Course of Ore Bearing Currents (Economic Geology, Vol. IX, 

 No. 3. April, 1914). 



32. GEORGE A. BATES : The Pronephric Duct in Elasmobranchs 

 (Journal of Morphology, Vol. XXV, No. 2, June, 1914). 



33. H. V. NEAL: The Basis of Individuality in Organisms-A De- 

 fense of Vitalism. (Science, N. S., Vol. 44, pp. 82-97, July, 1916. 



34. A. C. LANE : The Keweenaw Fault (Bull.- Geol. Soc. Am., Vol. 



2 7> PP- 93- IO . i9 l6 )- 



35. V. BUSH: The coupled circuit by the Method of Generalized 

 Angular Velocities, (Proc. Inst. Radio-Engineers, Vol. 5, No. 5, 

 PP- 3 6 3~3 82 . 19 1 ?)- 



36. H. V. NEAL: The History of the Eye Muscles (Journal of Mor- 

 phology ; Vol. 30, pp. 433-453, 20 Text-figures, March, 1918). 



