Thefe Obfcrvations being thought very confideraBle as well as curious/tis 
hoped, that thofe who have coiiYeniency, will give encouragement an(J afli- 
fiance for the making of them • and withall oblige the publick by imparting, 
what they fliall have obferved of this kind t The F/^toy^fr intending, that 
when ever fuch obfcrvations (hall be communicated to him, he will give no- 
tice of it t© the fublkk^^ and take care of the improvement thereof to the beft 
life and advantage. A Pattern of the Tal?le^ propofed to be made for obferving 
the Tides ^ is intended to be publifhed the nest opportunity, God permitting, 
■ - Account 
of fiveral Books lately ^nblijloed, 
L Johamu Bevdii D E S C R I?TIO COMB Jnm t^m 
€hrift'ian£ MDCLXV^ exorti 5 jim cum MA NTIS S A PredrowiCo- 
meticiP'jfervationes omnes pmr^ COME Tiy£ M DC L IV^ ex iifijm 
genmnnm mot urn as c mats dedfiBum^cum Notis AnmadverftGnthpfs .exhihens , 
This Book (as the Title it felf intimates) undertakes two things. Flr^, lo 
give an Account of the Second of the two lat^ Comets, which appeared,wben 
the ether was fcarce exftinft • Concerning which, the Author doth, from 
the Obfervationsmadebyhimfelfwith a Sextant oi 6 ^oot^ and divided into^ 
mintites2inif€conds, affign^of^ its true place ( as Well in refpe^ of the ^=. 
diftkk^s the t^'qmtor) and its proper motion ; Adding a fair Delineation 
of it;s Courfe, together with the genuine Reprefentations of its Hf<?^^ and 
Train, in each day of its apparition • and fubjoyning a General Defcription 
and Difcourfe of fome of the more notable Phmomena thereof/ It was firft 
fee/iat Dantz^kk, by the Watchmen, the ^th April ft. n. 166'y, and then 
©l)fervedby the Author fi om April 6,^hoiXt if of the Clock in the morning^, 
u\\ April zcat 3» in the morning. During which time, it went with a reafon- 
ible velocity making 46 deg, in its Orb, according to the Order cf the 
Signs, moving from the Breafi of /'f^^'//^, towards the Head otAndrmeda^. 
and iht Left Horn 0^ Aries 1, havin|^, as 'tis prefuracd, taken its rife from 
iihovQ Saiittary.^ and run through the Breafi of Antinom, under Aqnila^ anj 
tile Dolphin, to thd faid Pegafm and fo on, as is already espreffed . 
The Head of it is in the Book defcribed of a Colour like that of fufiter, all 
along mucli brighter than that of the former Comer, though of a fomewhat 
lels magnitude • havirg in its middle onely one round, hnt very bright and big: 
Kernel or Speckj refplendent likeGold, and encom pa fled with snoiher more' 
dilute and feemingly uniform matter ; its T^ir/being at firft, about 17 deg, 
and afterwards 20, and fometiipcs 25 deg» long, and divaricated tow^'ds 
the Hnd, 
Next, it is^obferved, that though this Star did afterwards flacken its pace,, 
yet it retained the vividnefs of its Colour, both of the Head and Train the 
Hf^i^/ efpeciaily, keeping at the time as well of the iaH obfcrvations, as of the 
