Bibliography. 149 



3. Memoirs of the American Academy of Arts and Sciences, New 

 Series. Vol. III. Cambridge and Boston : Metcalf & Co., Printers to 

 the University. 4to, pp. lxxxii and 290, with 45 plates. — The appear- 

 ance of this volume, filled as it is with substantial and important con- 

 tributions to science, is a gratifying proof of the efficient condition of 

 this long established Academy. 



The eloquent and discriminating eulogy on Hon. John Pickering, 

 LL.D., President of the Academy, by Judge White, forms an appro- 

 priate introduction to the volume. Mr. Pickering was a noble example 

 of the Christian philosopher — eminent alike in all that could adorn the 

 scholar, the jurist, and the man of science. Judge White's eulogy 

 upon this great and good man has been extensively read in the form in 

 which it appeared soon after its delivery in October, 1846. It now for 

 the first time, takes its appropriate place in the Memoirs of the Acade- 

 my. It is followed by 



I. Chloris Boreali- Americana : Illustrations of new, rare or otherwise 

 interesting North American plants, selected chiefly from those recently 

 brought into cultivation at the Botanic Garden of Harvard University, 

 Cambridge. By Asa Gray, M.D. Decade I, (with 10 plates.) p. 1. 



II. Contributions to the Bryologv and Hepaticology of North Ameri- 

 ca. By William S. Sullivant, A.M. Part I, (with 5 plates.) p. 57. 



III. Occultations and Eclipses observed at Dorchester and Cambridge, 

 Massachusetts, by William Cranch Bond, Director of the Observatory, 

 Wm. C, Bond, Jr., and George P. Bond. p. 67. 



IV. An account of the Nebula in Andromeda. By George P. Bond, 

 Assistant at the Cambridge Observatory, (with 1 plate.) p. 75. 



V. Description of the Nebula about the Star Orionis. By Wm. 

 Cranch Bond, Director of the Cambridge Observatory, (with 1 plate.) 

 p. 87. 



VI. Some Methods of Computing the ratio of the distances of a 

 Comet from the Earth. By George P. Bond, Assistant at the Cam- 

 bridge Observatory, p. 97. 



VII. An Attempt to discriminate and describe the animals that made 

 the Fossil Footmarks of the United States, and especially of New Eng- 

 land. By Edward Hitchcock, D.D., LL.D., President of Amherst 

 College, etc., (with 24 plates.) p. 129. 



VIII. On Platygonus compressus : a new Fossil Pachyderm. By 

 John L.LeConte, M. I)., (with 4 plates.) p. 257. 



Appendix. — Report on the discovery and Nomenclature of the Eighth 

 Satellite of Saturn. By Edward Everett, LL.D. p. 275. 



This volume is brought out with all the mechanical attractions of 

 good paper and perspicuous type, and the plates are many of them very 

 beautiful, especially the botanical and astronomical ones. . 



. It is very gratifying to observe the impulse which this Society has 

 received within the last few years-an impulse which reacts strongly 

 to concentrate and render available the scientific re, rch of New 

 England especially. At no former period has the effective scientific 

 force of the New England metropolis and her venerable University been 



80 great or so active as at present. . ... 



The discovery of the new Satellite of Saturn, Hyperion, by Mr. 

 George P. Bond, has already been noticed by us. The near coin- 



