PABASITES OF MAN. 121 



Adult State. — Tcenia echinococcus, Yon Siebold. 



Ultimate Host. — Dog and wolf. 



Eemaiks. — Forms three weU marked types of hydatid growth, 

 known to pathologists as exogenous, endogenous, and multi- 

 locular varieties fE. mult ilocul arts, Yirchow.) The liver is the 

 organ most frequented. Thus, in 327 cases collected by myself, 

 .373 by Davaine, and 983 by Neisser, giving a total of 1,083 cases, 

 the average of liver cases was very nearly 46 per cent. Hydatids 

 probably prove fatal in 25 per cent, of all the persons attacked. 

 La Iceland they are the cause of one-sixth of the annual 

 mortaMty. 



Literature. — ^All standard works on helminthology, especially those 

 of Leuckart and Davaine. The best monograph is that of Dr. 

 Albert Neisser (Die Echinococcen-Krankheit ; Berlin, 1877). 



TO BE cosirsxrED."; 



SCIEXTrFIC NAilES.— I. FOEM. 



BY W. E. GBOVZ, B.A. 



At the first birth of modem science, the names which it employed 

 were generally, though not universally, formed in accordance with 

 the recognised rules of the classical languages, but later times, when 

 an acquaintance with the classics is no invariable preliminary or 

 accompaniment of scientific discovery, have given birth to a number of 

 words, which are unclassical either in their form or their origin. This 

 may not be a matter of much regret, since science flourishes equally well , 

 whether its terms are of legitimate or barbarous formation, but on 

 the other hand the attempt at accuracy in this respect cam scarcely do it 

 any injury. One might justly think it unworthy of a scientific man to 

 descend to the level of the draper who manufactures ^'^ pectus expandus " 

 braces, or the shoemaker who invents "jjannu-j ccn'um" leather. In the 

 report of an estabUshment for the training of Xaturahsts, not long ago, 

 it was said that those students who had previously received a classical 

 training were always the least exact in their biological work ; but it is 

 by no means certain that this result was owing to their previous study. 

 In fact, since accuracy is to a great extent a habit, which, like other 

 habits, can be acquired, it would seem likely that those, who were most 

 accurate in one study, would be so in any other in which they were 

 equally interested. 



The following remarks are meant for those who feel the want of 

 some help and guidance in the matter of scientific nomenclature ; but 

 the subject is so extensive that only a small part of it can be touched 

 upon here. "What is to be said will be divided into two parts, the first 

 concerning the form, the second concerning the pronunciation of 

 scientific names. It is understood, of course, that the dictionary and 

 lexicon can be consulted, when necessary, by the investigator ; this is an 

 essential requisite, but one in which there can be little difficulty, in these 

 days of Hbraries, for aijy one. Most of the words, however, are not in 

 the dictionary in their complete form, but require to be looked o ;t 



o 



