INDEX. 



^Ethalium septicum . 

 Algse ...... 



Anacharis alsinastrum 

 Anchusa paniculata . 

 Animalcules 



PAGE 



39 



35 



. 22 

 . 22 

 40 



Anthomyia betae, Eggs of 81 

 Apparatus for Microscope 13 



Bats, Hairs of .... 87 

 Bell-flower Animalcules . 42 

 Blood, Circulation of . . 56 

 Bone, Structure of . . . 89 

 Butterfly, Eggs of . . 8 1, 83 



Cactus, Raphides in . . 22 



Camera Lucida .... 1 1 

 Canada Balsam . . .125 



Carchesium .... 43 



Cells, Vegetable ... 17 



Chalk 109 



Chara nitella .... 22 



Cilia ....... 41 



Circulation in Plants . . 22 



Coal 116 



Collecting Apparatus . . 123 



Condensing Lens ... 1 1 



Corpuscles of Blood . . 97 



Cricket, Drum and File of 73 



Crystals 104 



Cutis vera 92 



Cynipidse 80 



Deep-sea Soundings . . 109 



Dendrodus 121 



Dermestes, Hairs of . . 88 



Desmidiaceae .... 35 



PAGE 



Deutzia, Hairs of . . . 26 

 Diatomaceae . . .35, 105 

 Difference between Animal 

 and Plant .... 38 



Eel, Scales of .... 86 



Eggs of Insects .... 82 



Eozoon Canadense . . 14 



Epipactis 31 



Epistylis 43 



Equisetum, Spores of . 34 



Eyes of Insects ... 60 



Fat-cells in Human Skin. 92 

 Ferns, Spores of ... 33 



Flea 69 



Floscularia 48 



Fly, Foot of .... 74 

 Food, Adulterations in . 98 

 Foot of Frog, Circulation 



of Blood in ... 58 

 Foraminifera . . . .109 

 Fossil Diatomaceae . .105 



Fucus 32 



Fungus 33 



Glass Covers .... 13 

 Globigerinae . . . .ill 

 Gnat, Head of .... 67 

 Grew, Researches of . . 6 



Hairs, Structure of , . 86, 87 

 Halteres, Functions of . 73 

 Hind-foot of Bee ... 79 

 Hydra ..... 49 



Hymenoptera, Stings of . 80 

 I 



