— CLVIII — 



tive et negative. — Ledeboer. Le téléphone électromagnétique Zygang. — Minet. Lecons- 

 de chemie. Chronique et revue de la presse industrielle : Angleterre ; Autriche: Etats-Unis. — 

 21. Dieudonné. La lumière électrique à l'Exposition universelle de 1889. — Richard. Le 

 graphophone. — Samuel. Sur l'expression du travail aans les machines rhéostatiques. — 

 Decharme. Différences entre les électricités dites positive et negative. — Larroque. Sur 

 le re'magnétisme du fer. — Lodge. Les éclairs et les paratonnerres. Chronique et revue 

 de la presse industrielle: France. 



•fMagazin (Neues Lausitzisches). Bd. LXIV, 2. Gòrlitz, 1888. 



Franke. Grundziige der Schriftsprache Luthers. — Knothe. Die Familie Steinruckcr 

 in Zittau and Gorlitz. — Stòckhard. Johann Christian von Damnitz. 

 tMemorias de la Sociedad Cientifica « A. Alzate ». T. II, 7. México, 1889. 



Medal. Apuntes estadisticos sobre el Distrito de Ario, Estado de Michoacàn. 



•■Monatsblàtter des wissenschaftliehen Club in Wien. Jhg. X, 8. Wien, 1889, 

 """Notices (Monthly) of the r. Astronomical Society. Voi. XLIX, 6. London, 1889. 



Holden. On the photographs of the corona at the solar eclipse of 1889, January I. — 

 Burnham. The trapezium of Orion. — Downing. Probable errors of Greenwich determi- 

 nations of right ascension at different zenith distances-. — Gore. On the proper motion 

 of 85 Pegasi. — Finlay. On an error in Briinnow's formulai for differential refraction in 

 distance and position-angle. — Roberts. Photographs of the nebulse M 81, 82, and a nebu- 

 lous star in Ursa Major. — Espin. A catalogue of the stars of the IV type. — Crossley. 

 On a method of supporting a large mirror when silvering. — Plummer. Observations of 

 comets made at the Orwell Park Observatory in the years 1888-89. 

 + Observations de Pulkova publiés par 0. Struve. Voi. XIV. S. Pétersbourg, 

 1888. 



+ Proceedings of the London Mathematical Society. N. 346-348. London, 1889. 



Pearson. On a certain Atomic Hypothesis. — Tanner. On Cyclotomic Functions. — 

 Love. On the Equilibrium of a Thin Elastic Spherical Bowl. 



"Troceedings of the Boston Society of the Naturai History. Voi. XXIII, 3, 4. 

 Boston, 1888. 



Haynes. The Bow and Arrow unknown to Palseolithic Man. — Farlow. The Lichens 

 belonging to the Boston Society of Naturai History. — Hagen. Monograph of the Heme- 

 robidae. Part II. — Trelease. North American Species of Thalictrum. — Kneeland. On 

 the Metallic tubes found with a skeleton at Fall Rives «The Skeloton in Armor ». — 

 Crosby and Barton. On the Great Dikes at Paradise, near Newport. — Haynes. Loca- 

 lities of Quarries worked by the Indians for material for their Stone Implements. — 

 Davis. On the Mechanical Origin of the Triassic Monoclinal in the Connecticut Valley. — 

 Emerton. On the Restoration of the Skeleton of Dinoceras mirabile. — Marcou. On the 

 Use of the name Taconic. — Scudder. Cockroaches from the Carboniferous period. — 

 Ld. Glands and extensile organs in the Larva? of Certain Butterflies. — Jeffries. Note on 

 the Epidermal System of Birds. — Brooks. Preliminary remarks on the Structure of the 

 Funnel of Nautilus pompilius. — Ridgway. Notes on some type-specimen of American 

 Troglouytida? in the Lafresnaye collection. — Fewkes. A New Mode of Life among Me- 

 dusse. — Hyatt. Values in Classiflcation of the stages of Growth and Decline, with pro- 

 positions for a New Nomenclature. — Shaler. Origin of the divisions between the layers 

 of Stratified Rocks. — Abbott. On the antiquity of man in the valley of the Delaware. — 

 Wright. On the age of the Ohio gravel-beds (with figures). — .D'pham. The recession of 

 the ice-sheet in Minnesota in its relation to the gravel deposits overlying the quartz im- 

 plements found by Miss Babbitt at Little Falls, Minn. (with a figure). — Putnam. Remarks 



