1895 THE MICROSCOPE. 153 



Along with it was Melosira nrenulata, F. T. K., Bacillar- 

 ian, also very common. This looks like a number of pill 

 boxes, but with the endochrome, or coloring matter, of a 

 fawn tint. There are other BacillaracesB also in abun- 

 dance, but of those I do not wish to speak at the present 

 time. Closterium is a very common Desmid everywhere. 

 It looks like a brilliant green quarter moon and looks as 

 if it were multicelled, or made up of two cells not sepa- 

 rated by cellusose, but the contents of the cells are sepa- 

 rate for cyclosis, or the movement of the protoj^lasm, 

 which takes place in two separate whorls, being trans- 

 formed from the ends towards the center on the outside 

 of the cell; but inside the cell wall, which is made up of 

 extremely delicate hardening matter, it is cellusose 

 most likely. In Pediastrium the cells are made up of 

 cellusose also, but are separately arranged in the form 

 or a star and they are evidently separate cells. In 3Ielo- 

 sira the cell walls are siliceous and in a chain. As I have 

 said, the Pediastrium and Melosira are evidently multi- 

 cellar. In Closterium the contents are in one investing 

 membrane, but the cell contents, or endocronie, is di- 

 vided into two parts. Navicula is also separately 

 celled, or multicellular, although the contents do not 

 move as in Closterium. For there are several anothozoa 

 or male organs at least, which are circular-celled "oil 

 globules" and in the spring are active, and two large 

 "oil globules" which are ova or female organs. From 

 this reason I believe that the Bacillaracese are multi- 

 cellular. 



I have recently studied a Bacillarian which is Cym- 

 bella lancenlula C. Gr. E., which is the same as Cocoouema 

 lanceola to C. Gr. E., and is the sporangium of a small 

 species, perhaps Cymbella cistula H., 'which is also pres- 

 ent in the same gathering (book on Orange mountain. 

 New Jersey), and I see that the C. lanceolata has the cell 

 contents separated into two portions, and at each end on 



