140 



Helm, Stephen, Zoophytes 



The Protozoa 



Tho Foramiiiif era 



The Rotifera 



Polyzoa and Hydrozoa 



Hensoldt, H., Foraminifera , 



Honey, Pollen ID 



House-fly, Balancer of the 



Hyatt, J. D., Sub-stage condenser. 



Cinnabar in quartz.. 



Gomphonema herculaneum 



Micas of Manhattan Island 



HydromedusEB. 



Hydrozoa . . 



PAGE 



.. 55 



.. 59 



93 



119 

 94 



109 



106 

 54 

 58 

 94 



106 

 57 



infusorial earth, A new 126 



Larva. An unknown aquatic ... Ii8 



' of Gerris 13-2 



' mining Red Cedar 132 



Leggett, F. W., Fiddler crabs in 



fresh water 58 



" Long sting Wasp," Injury from the 135 

 Lophopus crystalUnus . 55 

 Love, Eow. G., Projections of photo- 

 micrographs 110 



Members, Election of ..108 124, 133 



Micas, Tourmalines in 102 



ot Maine 106 



of Manhattan Island ... 106 



Microscope, The work of the . . 87 



Mitchell, William R., Death of .'>6 



Miiller, Mr. J. D., invited 125 



Musca domestica 106 



Museum, Thanks to Officers of the 



American, of Natural History. ...110, 124 



Obelia commissuralis 57 



Officers. Election of 9". 



Orthoptera, Auditory organs of. 54 



Oviposition of Thalessa atrata 134 



Oyster shell, Blisters in 131 



Pellew, Charles E., The Bacillus of 



Tuberculosis 107 



Pestalozzia insidens 101 



— tremelloides 102 



Physics, Appleton's School 110 



Pipe-fish 93 



Pleurosigma valve, The structure of 



the 61 



Pollen in honey 109 



Polyzoa 119 



President, Annual Address of the 87 



PAGE 



Proceedings : 



Meeting of October 3d, 1890 53 



17th 54 



November 7th 56 



21st 58 



December 5th 91 



19th 93 



January 2d, 1891 94 



16th 95 



February 6th 106 



20th 107 



March 6th 108 



20th 110 



April 3d 119 



17th .• 119 



May 1st 124 



1,5th 126 



June 5th 129 



19th 132 



Protozoa 59 



Pseudo-scorpion, Nest of 57 



Publications received 59, 97, 111, 136 



" Com mittee on 95 



Report of Committee on. 95 



Pycnogonidce 56 



Quartz. Cinnabar in 58 



Reception, Report of Committee on 



Annual 108, 110 



The Annual 119 



Report of the Treasurer 95 



of Committee on PubUcations 95 



of Curator 95 



of Committee on Annual Recep- 

 tion 108, 110 



RiEDERER L., Pycnogonum. Obelia 



commissuralis 56 



ActinicB. The Pipe-fish 92 



— - Eutania sirtalis 96 



Crangon vulgaris 108 



Pollen in honey 108 



Rotifera. The 96 



Desiccation of 96 



Rulmgs, Fasoldt 110 



Sand, Silicious 131 



Scientific Alliance, Commissioners in- 

 vited to 107 



Appointments to 107 



Report of Commissioners to 110 



Secretary, Recording, Election of 132 



Silicious sand 131 



Skeel, Frank D., Fungi in solutions. . 55 

 Smith, T. F., The structure of the 

 Pleurosigma valve 61 



