4. Fishery Board for Scotland. 
additional bottles is much less than was got from our earlier returns, 
and this is mainly due to the long period of time they have been 
submerged, the history of their ‘nigrations being unknown for 
periods ranging from 22 t017 years. Exactly w hat these long-lost 
messengers may have been doing is a matter for conjecture ; some of 
them may have been delayed by g vetting entangled with seaweed or 
a rocky bottom, others may have drifted to and fro, or some may 
have even completed a circuit, but so far we have got no evidence 
of a closed curve. 
In consideration, then, of the very small rate of drift of these 
additional bottles, we have not here presented a chart showing the 
resultants obtained therefrom, and, indeed, after incorporating 
them with the first lot of bottles, the bottom curves originally 
obtained were scarcely affected, the modification being so very 
slight that the curves already given may stand. 
Table IV.(a) contains a record of the additional bottles washed 
up on the Scottish coasts, and Table V.(4) of those found on distant 
coasts. 
THE SEconp EXPERIMENT. 
The results of the first experiment proved so clear and interesting 
that another series of bottles were put away at intervals between 
August, 1910, and July, 1911. 
The same pattern of bottle was used, but instead of throwing 
overboard a single bottle at half-hourly intervals during the cruises 
of the “‘ Goldseeker,” as was done with the first lot, groups of five 
bottles were usually cast overboard at each position, although ten at 
a time were sometimes put away at the less frequented places. The 
percentage of bottles recovered from the second series is greater 
than the returns from the first series, namely, 26 per cent., compared 
with 20 per cent., the period under review being three years for the 
former and 24 years for the latter; but it has to be borne in mind 
that a good many bottles of the second series, some 200 in all, 
were put overboard in the regions lying to the west of the Orkney 
Tslands, very few of which have so far been returned. 
ANALYsIS OF Drirr BotrrLtes RECOVERED. 
Ist Series (1,012). 2nd Series (790). 
Received Addit- Received 
Aa ey Tani peter in eS Refer in counts Refer in 
ast present present 
of last Rasortite Bottles R tt October, R ages 
Report. P received.| ~°POF® °°} 1913. i aces 
(a) By Trawler, .| 153 |Table I. | 78 |TableT.(aj] 140 |Table I.(b) 
(b) On Scotch Coast, 20 Boil AVES 11 wy LVata) 31 Fee N/((10)) 
(c) On Distant Coasts, 14 Pa Ve, 28 seh Waa) al! 500 Vix) 
(d) Less than 30 days 13 93. LTS ea _ 19 55 Late(() 
Adrift, 
Totals, 4 ‘ 200 = 112 — 204 — 
Percentage, ; 20% — 11% — 267 — 
Period under review, | 23 years — 7 years = 3 years = 
ae RI PS Pons oO 
