143 



Diatoms in each .strcnglh of preservative were green in color 

 but kept well. Various other algae kept poorly; such as Zyg- 

 nema, Sligendonium, Cladophora, etc. 



Copper Chloride-laclo-phenol 



In the weaker solutions, but in greater amounts in pro[)f;rtion 

 to the algae, the results were more satisfactory as to plasmolysis, 

 but not so good as to color. In the stronger solutions, the color 

 is fine but the plasmolysis has rendered the algae unusable. 



Out of over sixty specimens I have been obliged to throw out 

 more than forty, as I used more of the stronger solution in pre- 

 serving. Perhaps the difference in water in the two regions might 

 have some effect on the preserving of such material in such media, 

 as in most cases my results tally very indifferently with those 

 of Smith and his associates. To any one making collections of 

 algae I would suggest considerable experimentation before trust- 

 ing completely in these preservatives. 



A. R. HiLLARD 



Edgewood High School, 



Edgewood Park, Pennsylvania 



REVIEWS 



Piper and Beattie's Flora of the Northwest Coast* 



One of the most pleasing local floras, both as to contents and 

 as to appearance, is Piper & Beattie's Flora of the Northwest 

 Coast, which appeared in the latter part of 1915. The area 

 covered by the work is the region west of the summit of the 

 Cascade Mountains in the states of Washington, and the northern 

 half of Oregon. This region together with a small part of British 

 Columbia constitutes a very natural area. The southern part 

 of Oregon west of the Cascades, comprising the Umpaqua and 

 Rogue River basins, is left out, as in this region the flora of 

 northern California becomes more and more prevalent. The 

 flora is made up of i ,617 species and subspecies of flowering plants 

 and fernworts, representing 550 genera and 100 families. As the 



* Flora of the Northwest Coast, by Charles V. Piper and R. Kent Beattie, 

 published by the authors and issued by the New Era Printing Companj-, Lancaster, 

 Pennsylvania, November lo, 1915. 



