2. 



The maps are marked with 500 foot squares and reference letters 

 and numbers which can be used to locate the position of the area 

 occupied by a plant approximately if it cannot be indicated briefly 

 by reference to the topographical features. Usually, localities 

 and areas can be identified by referring to well known features 

 which are indicated on the plan ( or which should be added to it), 

 together with with the abbreviations for the points of the compass, 

 N., S.? E., W., etc. For example, "throughout valley " between 

 certain hills, or along a certain stream, or on the ¥, slope of a 

 certain &ill , etc. 



It will be the aim to include in the flora all plants that are 

 now growing, or that are known to have been found growing, within 

 the reservations, including adventives. The history ofi exterminated 

 and adventive plants with authorities for the same, and a reference 

 to an existing plant in some herbarium should be given if possible. 

 It is desirable that herbarium specimens shall be preserved of 

 all the plants found growing in the reservations, and it is deemed 

 essential that specimens of rare plants or those that run any chance 

 of being exterminated shall be preserved. 



Mr. N. T. Kidder of Milton, Mass., has very kindly offered to 

 preserve the identity of specimens from the Blue Hills and Stony 

 Brook reservations, and to care for them in his herbarium which will 

 ultimately be deposited with some well established society. 

 Mr. Prank S. Collin of Maiden, Mass., who is the custodian of the 

 Middlesex Institute herbarium, on which the Middlesex Flora is based 

 has kindly consented to preserve the identity of species from the 

 Fells and Beaver Brook reservations and to place them in this her- 

 barium. 



