Salt marshes.
Salzburg.
precautions concerning students.
San Antonio, Port of.
San Diego.
Sandy Point.
San Francisco.
San Magdalena.
Santiago.
San Vicente.
Sargassum.
Sarmiento Range.
Saturday Club.
Schelling.
Schimper, Karl.
Schimper, William.
Schinz, Prof.
library and collection.
School for young ladies opened.
success.
lectures at.
close.
yearly meeting of old pupils,–gift to the Museum.
Schubert.
Scudder, S.H.
description by, of a first lesson by Agassiz.
Scyphia.
Sea bottom.
Sedgwick, Adam.
on Geoffrey St. Hilaire’s theory.
question on descent.
Sedgwick, Adam.
Seeley, H.G.
Seiber.
Sharks and skates.
Shepard.
Sholl Bay.
moraine at.
Shore level, change of.
Siebold, Letter of, about Agassiz at Munich.
Siedelhorn, ascent of the.
Silliman, Benjamin.
announces subscribers to “Fossil Fishes”. Visit to.
Siphonia.
Smithsonian Institution.
lectures at.
Agassiz becomes regent of.
Smythe’s Channel.
Snell, G.
Snowy Glacier.
Snowy Range.
Sonrel.
Spain, plan for collecting in.
Spatangus.
Spix.
his “Brazilian Fishes”.
Sponge, chemidium-like.
Sponges, deep sea.
Stahl.
Starke.
Steindachner, F.
Steudel, the botanist.
Stimpson, W.
Strahleck, ascent of the.
Studer.
Stuttgart, Museum at.
Sullivan’s Island.
Summer School of Natural History, plan for.
Sumner, Charles.
Tagus Sound.
Talcahuana.
Tarn Bay.
Tenon.
Thayer, Nathaniel, promotes Brazil expedition.
Tiaropsis.
Ticknor.
Tiedemann, Professor.
invites Agassiz to Heidelberg.
Torrey, Professor J.
Tortugas.
Traunstein.
Trettenbach.
United States.
first thought of visiting.
idea given up.
resumed.
departure for.
impressions of.
scientific men.
United States Coast Survey.
steamer “Bibb”.
constant connection with.
examination of Florida reefs.
dredging expedition.
United States Museum of Natural History.
Valenciennes.
Vallorbe.
Valparaiso.
Vanuxem.
Vienna, visit to.
Viescher Glacier, cave of.
Vintage in Switzerland, the.
Vogt, Karl.
Volcanic islands.
Volcanic soil.
boulders.
Wahren.
Wagler.
Wagner.
Walther.
Waltl.
Washington.
Weber, J.C.
West Point.
White, W.
Whymper collection.
Wild, Mr.
Wilder, B.G.
Wilkes Exploring Expedition.
collection.
Wollaston prize.
Wollaston medal.
Wyman, J.
Wyman, Dr. Morrill.
Yandell.
Zuccarini.
Zurich.
professorship offered.