— LUI — 



On bituminous material from Pulaski County. — Smith. On a new method for the decomposition of 

 chromic iron. — Cope. Descriptions of new vertebrata from the upper tertiary of the West. — ld. On 

 some saurians, found by Mr. Charles M. Wheatley in the triassic of Pennsylvania. — ld. On the 

 vertebrata of the Dakota epodi of Colorado. — Prime. On the palaeozoic rocks of Lehigh and Nort- 

 hampton Counties in Pennsylvania. — Frazer. Eemarks on the preceding. — ld. On cristallography 

 in sculpture. — Lesley. On a series of chemical analyses of magnesian limestone beds, made by 

 Mr. Joseph Hartshorne, at Harrisbury. 



tProceedings of the Boston Society of naturai history. Voi. XIX fase. 1, 2. Boston, 

 1877. 8.° 



Sterry Hunt. The Quebec group in geology. — Austin. On the species of Sunius and Paederus 

 found in the United States. — Hyalt. The embryology of sponges. — Minot. On the cla,3sification 

 of the lower worms. — Scudder. A century of Orthoptera. Decade VII Acrydii. New forms of Sal- 

 tatorial Orthoptera from the Southern United States. — Sacken. Eeport on the Diptera brought 

 home by Dr. Bessels from thè arctic voyage of the « Polaris » in 1872. — Ball. Note on « Die Gaste- 

 ropoden Fauna Baikalsees ». — Farlow. On certain Algae in Horn Pond, Woburn. — Wright. Some 

 remarkable gravel ridges in the Merrimack Valley. — Hitchcock. Lenticular hills of glacial drift. — 

 Emerton. A comparison of the Spiders of Europe and North America. — Scudder. On the phenomena 

 of circulation in inseets. ■ — Hofmann. List of Mammals found in the vicinity of. grand Eiver. — 

 Lyman. Mode of forking among Astrophytons. — Bendire. Notes on birds found in South-eastern 

 Oregon. — Barrows. Catalogùe of the Alcidae contained in Museum of the Society, with a revew 

 and proposed classification of the family. — Minot. On the formation of the germinai layers, and 

 the phenomena of impregnation among animals. — Me Grady. A provisionai theory of generation. — 

 Garman. On the pelvis aud esternai sexual organs of Selachians, with especial references to the new 

 genera Potamotrygon and Disceus. 



tProceedings of the London mathematical Society. Voi. IX n. 126-135. London, 1878. 8.° 

 Cayley. On the geometrical representation of imaginary variables. — Tanner. On partial diffe- 

 rential equations of the 1* order. — Rayleigh. Eelation between the functions of Laplace and Bessel. — 

 Roberts. On the normals of conics. — Tanner. On a general method of solving partial differential 

 equations. — Lamb. On the conditions for steady motion of a fluid. — Maxwell. On the electric 

 capacity of a disk of sensible thickness. — Minchin. On astatic equilibrium. — Lendesdorf. On certain 

 extensions of Frullani's theorem. — Klein. On the transformati on of elliptic functions. — Cayley. 

 On the theory of groups. — Kempe. On coniugate four-piece Linkages. — Halpen. Sur la théorie des 

 caraetéristiques pour les coniques. — Monro. On flexure of spaces. — Me Coli. The calculs of equi- 

 valent statements. — Roberts. On the decomposition of certain numbers into sums of two square 

 integers by continuated fractions. 



tProceedings of the Eoyal geographical Society. Voi. XXII n. 3-6. London, 1878. 8.° 



3. Bryce. On Armenia and mount Ararat. — Evans. Lecture on the magnetism. of the earth. — 

 4. Cotlerill. On the Nyassa and a journey from the north end to Zanzibar. — Haddan. On overco- 

 ming geographical obstacles to african trade, by economical animai and mechanical expedients. — 

 Gill. Travels in western China and on the eastern borders of Tibet. — Goad. Ori' Lieut. Wheeler's 

 explorations in New Mexico. — Trotter. On the geographical results of the mission to Kashgar under 

 sig. T. Douglas Forsyth in 1873-4-5. — 5. Ruterford Alcock. Adress at the anniversary meeting of 

 the E. G. S — 6. Stanley. Geographical sketch of the Nile and Livingstone. — Thiselton-Byer. Lecture 

 on plant distribution as a field for geographical researche. 



tProceedings of the E. Society of Edinburgh. Voi. I-IX. Edinburgh, 1845-76. 8.° 

 tProceedings of the scientific meetings of the Zoological Society of London for the 



year 1878. Part 1, 2. London, 1878. 8.° 

 tProceedings of the Torkshire philosophical Society. Voi. I, 1, 2. York, 1849-55. 8.° 

 tProcessi verbali della Società toscana di scienze naturali. Adunanza del 7 luglio 1878. 



Pisa, 8.° 



