GENERAL INDEX. 



•The italic figures refer to the Proceedings. 



Acanthograptus, genus • ■ 581 



" granti 581 



•' pulcher 582 



Acetic acid 628, 634 



Acids, Fatty 627 



Age and diameter of trees 62 



Annual reports of officers . . 32, 60 

 60, 82 



Apanteles acronyctic 312 



" aletiae 306 



" cacoeci2e 305 



" cassianus 307 



*' congregatus 307 



" limenitides 308 



*' megathjmi .... 297, 304 



'' paleacritae 313 



■" politus 307 



" smerinthi 311 



" thecla- 308 



Archaeocidaris newberryi 551 



Astragalus mallissimus ("loco") 



10 1. 106 



Banks of the Lower Mississippi 40 

 Bibliography of the Graptolite 



Family 557 



Biograph}' of Dr. George En- 



gelmann 1 to 18 



Butyric acid 630, 635 | 



Cabbage-worm .57 j 



Callograptus, genus 570 



granti 571 i 



" minutus 572 



" multicaulis 572 | 



'* niagarensis 571 ' 



Calyptograptus, genus 577 



cyathiformis • . . 578 

 micronematodes 579 



radiatus 580 



subretiformis .. 573 

 Catalogue of species of Grapto- 



tilidse 564 



Catal. of New Niagara species. 602 

 " N. Am. Microgasters. 313 



" Stromatoporidae 593 



Catalpa speciosa 50 



Caunopora, genus 596 



" hudsonica 602 



" mirabilis 597 



" walkeri 596 



Cholera — Facts concerning past 



visitations 120 



Cinchona-tree 55 



Classification of Graptolites . .. 561 



Clathropora(?), gracilis 604 



Coral "pockets" in Lower Silu- 

 rian sandstone 119 



Codonites campanulatus 553 



Ccenostoma, genus 598 



" botryoideum 600 



" constellatum 598 



" galtense 602 



" ristigouchense ... 599 



Colorado hot-springs 71 



Conchoid of Nicomedes 325-6 



" of refraction 325-6 



Conchylis cenotherana 316 



" erigeronana 316 



Conularia magnifica 607 



" rugosa 608 



