1896.] Contents. 



America, 656 ; Journey Through Mongolia and Thibet, 731 ; 

 Publications of the United States Geological Survey for 1893-4. 

 Fourteenth Annual Report, 732 ; An Introduction to the Study 

 of Zoology, 733 ; The Cranial Nerves in Batrachia, 733 ; Structure 

 and Life of Birds, 734 ; The Earth and Its Story, 927 ; A Hand- 

 book of Rocks, for Use Without the Microscope, 728 ; Gregory's 

 Plant Anatomy, 1028; Boulenger's Catalogue of Snakes in the 

 British Museum, 1029 ; Nuttall's Handbook of Birds, 1031 ; Edu- 

 cation of the Central Nervous System, 1032 ; Lydekker on the 

 Geographical History of Mammalia 



Recent Books and Pamphlets— 41, 125, 205, 295, 390, 473. 57°. 6 57, 

 734,807, 830 



General NOTRS.— -Petrography.— The Origin of Adinoles, 43 ; Notes 

 from the Adirondacks, 43 ; An Augengneiss from the Lillerthal, 

 45 ; Petrographical Notes, 45, 130, 210, 300, 395, 477, 579' 66 3, 

 744, 817, 1040 ; Igneous Rocks of St. John, N. B , 127 ; Eruptive 

 Rocks from Montana, 128; Porphyrites and Porphyritic Struc- 

 ture, 128 ; Granophyre of Carrock Fell, England, 129 ; Sheet and 

 Neck Basalts in the Lausite, 129; The Eruptives of Missouri, 

 207 ; Rocks from Eastern Africa, 208 ; A Basic Rock Derived 

 from Granite, 209 ; Cancrinite-Syenite from Finland. 209 ; Rocks 

 from the Sweet Grass Hills, Montana, 210 ; Examples of Rock 

 Differentiation, 297 ; Ancient Volcanics in Michigan, 393 ; 

 Gneisses of Essex Co., N. Y., 393 ; Volcanic Rocks in Maine, 

 394; Spotted Quartzites, S. Dakota, 394; The Gneisses and 

 Leopard Rock of Ontario, 395 ; Malignite, A New Family of 

 Rocks, 475 ; Foliated Gabbros from the Alps, 476 ; The Rocks of 

 Glacier Bay, Alaska, 477 ; Volcanic Rocks and Tufts in Prussia, 

 576 ; Igneous Rocks of British Columbia, 577 ; Chalcedony Con- 

 cretions in Obsidians from Colorado, 578 ; Basic Dykes near 

 Lake Memphremagog, 578 ; The Origin of the Maryland Gran- 

 ites, 578 ; The Eruptives and Tufts of Tetscheu, 660 ; A Nephe- 

 line-Syenite Boulder from Ohio, 662 ; Crystalline Rocks of New 

 Jersey, 662 ; Simple Crystalline Rocks from India and Australia, 

 662 ; The Weathering of Diabase, 663 ; Petrography of the Bear- 

 paw Mountains, Montana, 741 ; Two French Rocks, 741 \ The 

 Granite of the Himalayas, 742 ; California Rocks, 742 ; Gabbro- 

 Gneiss from Russell, 743 ; Geology of Point Sal, California, 814 ; 

 Leucite-Basanites of Vulcanello, 815 ; A Squeezed Quartz-Por- 

 phyry, 816 ; Mica-Syenite at Rothschonberg, 817 ; The Sioux 

 Quartzite of Iowa, 1038 ; The Peridotites of North Carolina, 

 1038; Shales and Slates from Wales 



Mineralogy. — Contact Goniometer with two Graduated Circles, 573 ; 

 Crystallographic Properties of the Sulphonic Acid Derivatives 

 of Camphor, 573 ; Optical Properties of Lithiophilite and Tri- 

 philite, 573 ; Native Sulphur in Michigan, 574 ; Leadhillite 

 Pseudomorphs at Granby, Mo., 574; Celestite from Giershagen, 



