BIBLIOGRAPHY. 



SELECT WORKS ON SCIENCE PUBLISHED DURING 1877. 



The usual list of works published during the year which 

 the Record covers is here presented. As in past years, it 

 is necessarily a very partial enumeration, and mostly con- 

 fined to those works that have been noticed in a few of the 

 prominent scientific periodicals of the day. The limita- 

 tions of the Record preclude an exhaustive bibliography; 

 nor, indeed, is this required by the plan of the work. Those 

 volumes that have features of general interest to commend 

 them, or are of special scientific value, have for the most 

 part been included : two or three, however, have been men- 

 tioned that are of exceptional worthlessness, on account of 

 their general circulation ; in the latter case their character 

 is indicated. 



Wherever the volumes themselves were accessible, the ti- 

 tles and collations have been taken directly from them. In 

 many cases, however, the compiler has been obliged to de- 

 pend solely on the titles contained in the journals in which 

 the volumes have been noticed, or upon booksellers' an- 

 nouncements. These are often, and indeed generally, defi- 

 cient in some point or other: e.g., the title may be imper- 

 fect or altered ; the date of publication may be omitted, and 

 then it is not always certain whether the volume has been 

 published during the current year or in a past one; there is 

 a difference in the statements as to sizes; the collation is 

 frequently absent or erroneous, and the number of pages 

 incorrectly given, and sometimes even the place of publica- 

 tion is omitted. Wherever the means of verification or cor- 

 rection by referring to the volumes themselves have been 

 possible, they have been improved; unfortunately, however, 

 in many cases the volumes themselves could not be con- 

 sulted. 



The titles of the works catalogued are enumerated in as 

 nearly as possible a logical sequence, and under those heads 

 where they would be most likely to be sought for by the 



