156 = Remarks on Dr. Enfield’s Institutes 
will recede with an activity which might seem the effect of 
ut on holding the vessel in the light, the se- 
cret of these motions will be apparent. Each globule will 
be seen to have a depression around it, which perceptibly'e 
tends to the distance of more than half aninch. The gl lobiiles 
will be seen to rush together, not from any motel attrac- 
tion, = because, in doing it, each descends down an inclin- 
ed plane. 'Two needles, laid on water and kept parallel to 
each ch ches will exhibit similar appearances 
Tn the Optics, under Prop. 18. rues? 22, 23, 55, 56, &e. 
increases the ache of ounolanee sect impor- Z 
tant See which are already too complex.* It were to | 
be w eukee the ac of these er that we sek some 
Sin tat jae This has not been done silo: the Editor ; ; 
and the Neg PH that sev ntain an — 
* focus ate in prop. 553 but in props. ro 23, and 56, which 
equally required a similar addition, and in prop. 54, which. » 
required a substitution, neither has been made. Such an 
addition would, it is true, have rendered the enunciation of — 
some of these propositions exceedingly perplexed; but 
eect demanded that i it t should be done, or that ‘the 
ngus : 
se of f jiormer 
ait! ltered.+ 
* Such, in Enfield’s tptckis are. ¢ prope. 1, 23, 54,56. 
be admitted that the language of former editions, inthis re 
as uot € otirely sonar with ‘eel Dets. 
bo Wrnbehed undies se sane et 
