104 STUDIES IN EVOLUTION 



42. Lothelier, M., 1890. Revue general de Botanique. Compte 



Rendu, t. cxxi. 



43. Lucas, F. A., 1895. The Weapons and Wings of Birds. Rept. 



U. S. Nat. Mus. for 1893. 



44. Lydekker, R., 1892. Phases of Animal Life, Past and Present. 



45. Marsh, O. C., 1897. Principal characters of the Protoceratidae. 



Amer. Jour. Sci. (4), vol. iv. 



46. 1896. The Dinosaurs of North America. Sixteenth Ann. 



Rept. U. S. Geol Surv. 



47. Micrographic Dictionary, 1883. J. W. Griffith and A. Henfrey, 



fourth edition, J. W. Griffith, M. J. Berkeley, and T. Rupert 

 Jones. 



48. Minot, C. S., 1891. Senescence and Rejuvenation. Journal of 



Physiology, vol. xii. 



49. Morris, Charles, 1886. Methods of Defence in Organisms. Proc. 



Acad. Nat. Sci. Phila., vol. xxxiii. 



50. Neumayr, M., and Paul, K. M., 1875. Die Congerien- und 



Paludinenschichten Slavoniens und deren Faunen. Ein Beitrag 

 zur Decendenz-Theorie. Wien Geol. AbhandL 



51. Nicholson, H. A., 1875. Palaeontology of the Province of 



Ontario. 



52. and Lydekker, 1889. A Manual of Palaeontology, third 



edition. 



53. Owen, Richard, 1868. On the Anatomy of Vertebrates. Vol. III. 



Mammals. 



54. Packard, A. S., 1890. Hints on the evolution of the bristles, 



spines, and tubercles of certain caterpillars, apparently resulting 

 from a change from low-feeding to arboreal habits ; illustrated 

 by the life-histories of some Notodontians. Proc. Boston Soc. 

 Nat. Hist., vol. xxiv. 



55. Paget, James. Lectures on Surgical Pathology, I. 



56. Peckham, Elizabeth G., 1889. Occasional Papers of the Natural 



History Society of Wisconsin. Vol. I. 



57. Pird, Louis, 1871. Notice sur le Planorbis complanatus (Forme 



Scalare). Ann. Soc. Malac. de Belgique, t. vi. 



58. Poulton, E. B., 1890. The Colors of Animals, their meaning and 



use, especially considered in the case of insects. Internal. Sci. 

 Series. 



59. Pritchard, A., 1861. A History of the Infusoria, including the 



Desmidiaceae and Diatomacese, British and Foreign, fourth 

 edition. 



60. Romanes, G. J., 1892. Darwin and after Darwin. An Exposi- 



tion of the Darwinian Theory and a Discussion of Post- 

 Darwinian Questions. 



